Greetings,
I've read through quite a bit of suggestions since I started playing this game, trying to avoid as many "spoilers" as possible unless I couldn't figure it out (or didn't want to take the time to figure it out). And since the good people at Larian (my hat is off to all of you--love your work) actually read these forums and genuinely care about what we, the players, think, I'm giving my "two cents" worth.
* Like many, I'd like to be able to fight land mobs while in dragon form. A way to balance--and this occurred to my while reading through forum-- could be that in dragon form you can only take out the mob boss (and maybe a healer and two shaman? *big grin*). When getting to Orobas Fjords, the imp mobs that have like 3-4 shaman along with 3-4 melee fighters was ridiculous! Several reloads, sometimes, because they'd kill me so fast, even with my "pet." Maybe in dragon form the entire mob couldn't be taken out, but if either the disposables (henchman--low levels, you know, any Tom, Dick or Harry will do *wink*) or the bosses could be taken out in dragon form, then finish off the rest in human form. I personally like being able to switch forms at will- it'd be nice for there to be more usefulness to it.
* Definitely keep the storyline going! I was happy to read that the add-on would be a seamless continuation!
* It's been mentioned before, but worth mentioning again, especially when part of the "tips" is to be careful of the decisions you make: Make there be consequences for actions! One example already given was the farmer's wife and Derk (the blacksmith). In the first Divinity, you had "Reputation" points, that were adjusted according to actions you took. It would seem that could and should be implemented with the add-on and D3(?), because it's already part of the Divinity story/world.
* I miss the risk of thieving! One of the only games where you "might get caught" thieving that I've played is the first Divinity! I loved that aspect, as was disappointed that it wasn't part of Divinity 2. Again, this is something that was already part of the story/world from the beginning-- maybe this falls in the category of consequences for actions.
* Recipes: Very frustrating to not know what's already been learned, what's needed for certain recipes (while you're out and about, or buying from a vendor). Please incorporate what is already partly in the game in the add-on: being able to see what's needed. As has already been suggested, a tab showing what you've already learned would also be very helpful-- and can still incorporate the ingredients list.
* The rewards. I was rather disappointed at getting unique items at nearly the end of the game (last 2-5 levels). It was great fun trying to find all the pieces of the sets, but so late in the game that it's practically useless (unless, of course, this gets carried over into the add-on). Still it would be nice to see small sets (say, a jewelery set) earlier-- maybe (if mind reading is still a feature in the add-on) there's a rich character (not unlike the wealthy of Verdistis & Merchants all over) who has a jewelery set stashed in various places of his home/property that you can find only through mind-reading. Just an example.
* Most of the tips for this game concerned the battle tower, which you don't get until nearly the half-way point. I'd hate to think this was a design flaw-- seems more like it was due to time constraints. I'm not saying that the "big deal" should come super early or easy, but.... I hate to do this, but I must refer to another game for an example (I really hate doing this kind of comparison, but I don't know how else to explain). The Battle Tower of Ego Draconis is similar to the gaining of the Horadric Cube in Diablo 2 (I play the expansion). It's primary purpose is as a quest item that must be had to complete Act II (of 5 acts, w/ the expansion). It is difficult to get, but so rewarding-- and the rewarding doesn't stop. There are all sorts of formulae that can be utilized throughout the entire game! For Ego Draconis, I was very expectant for getting the Tower, and somewhat disappointed in how little I 'needed' it later in the game. For future reference, something this important and supposedly a "key role" of the game should be more useful (in my opinion).
* I'm guessing most of the writing has been done for the add-on... Still, something I noticed with Ego Draconis is the 'skewed' time-line (or so it seems to me). The people of Dragon Cliff have been waiting for Orobas for several decades? I loved the appearance of Buad... but how old is that guy? And the blind man who discovered how to live for a thousand years.... Mardaneus (that crazy, lovable coot) passed away.... I'm guessing that there's going to be some kind of time passage while the "hero" is in the Hall of Echos (trying to not put any spoilers), but I hope to see/feel less time-line discrepancies.
* Bigger world. What's up with that little heart-shaped place in the upper right of the map? I thought that was going to come into play (like, it's the heart of the dragon, so maybe the battle tower was there.... or maybe that's where the remaining REAL dragons escaped to... or???). The world is small and seems constricted, especially with flying ability, and the obliteration of Broken Valley, Aleroth, Rivertown, etc. Where are the Dwarves? What happened to them? Did Zix-Zax "the Almost Wise" escape the poisoning of Broken Valley? Maybe Zix-Zax finds Maxos and they are the ones to rescue Divine & my character? *BIG smile* On that note, I'm assuming we'll get to meet this mysterious Maxos-- perhaps he became Damian's pet in his greed for power? So many possibilities!
On a final note, I'd like to see the add-on as only an expansion... and to leave room for Divinity 3! You have done a great job with the Divinity world-- I love the humor, the storyline is fantastic, an immersible world, to be sure. Divinity is in my top 3 "LOVE" to play RPGs. Keep up the great work. Take the time needed to make a great add-on, and a great 3rd Divinity ("Rise to Power"!). I think the true fans of Larian Studios are willing to wait for an awesome, replayable game that doesn't have bug issues and is expansive, and would prefer that over a half-done, "hurry up and get it out" game. I'm willing to wait

Looking patiently forward to Flames of Vengance,
~~CierraShore
p.s.
I play PC games only-- we don't have any console games. I use the following, and haven't had too many problems:
Dell Vostro1720 (laptop)
Intel(R) Core(TM)2 Duo CPU
T6570 @ 2.10 GHz, 2.09GHz, 2.99 GB RAM
NVIDIA GeForce 9600M GS (video card)
IDT High Definition Audio
and Windows XP OS