Personaly i believe that Hotbar needs only few tweaks, and can be completely working for everyone ...
- Firt of all, they certainly should make it bigger ... im not quite sure who in Larian was thinking that reduce size of hotbar to less than half (compared to
first build we ever seen) is good idea. O_o
(
You can also notice that in that build, UI adressed several other problems like ... unecesary duplicity, or triplicity in combat, of your characters portraits ... the fact that you can easily have 5 members party without any colision with other UI, since party have its own space, etc. ... to put it simply, personaly i find this UI to be bzillion(its not typo) times better in every way.)
- Second, in this order is needed to strictly STOP spells from returning to hotbar ... its anyoning, its have no purpose, and if i throw away some spell from my bar, its bcs i dont want it there! So please, accept that Larian. Everything else can be adjusted in settings, but this problem remains even if you turn everything off. -_-
- Third, its totally needed for spells to SORT! Both in Popup Window, and in Spellbook ...
What game do now its unforgiveable mess. :-/ And i honestly hate it, when you have two persons of same class, you can easily notice that spells in their spellbook are not sorted the same ... i honestly dont quite understand why, but i want to look and see ... not look, search, read tooltips, and then see. :-/
Its especialy anoying if you have two Warlocks, and your Hex types are sorted differently. -_-
Make it alphabetical ffs. :-/
- Fourth(?), it would be nice if spells that can be re-cast would not require additional space on hotbar ...
Perosnaly i love the idea that spells like Hex, Hunter's Mark, or Speak With dead ... would simply replace its usual casting icon with re-casting icon ... since you cast exactly the same spell minus spending spell slot ... there is no reason to create separate icon in another place for that.
For other spells, wich have multiple possible uses, like Witch Bolt, or Produce flame ... pesonaly i would choose option to create popup-window menu, where you would have all possible uses ...
So while you will keep concentration on Witch Bolt, you click on Witch Bolt icon and you see there: Free Wich bolt > level 1 > level 2 ...
So while you will keep concentration(?) on produce flame cantrip, you click on your produce flame icon and you see there: Cancel flame > Throw flame (that is all isnt it? i cant help the feeling i forget some third option)
- Fifth, to please even some people (except the most pure antihotbar extremist) who would like to have dedicated UI ...
I would either suggest allowing casting from Spellbook (wich can be even binded, that is another plus in my opinion) and possibility to add spellbook icon on hotbar ... wich should be quite easy, right now when you click on your spellbook in combat, it opens small version of your specific character spellbook, instead of all of them ... then you can by Left click prepare your spells (except you cant, since you are in combat), and by right click you can do the same ... simply allow us to cast when left clicked, and prepare spells by right click and VOILA! Spellcasting ui with possible binding is done!
Or, bcs some people didnt like this idea in the past ... i would suggest multiple popup windows for them ... you click on spellcasting icon on hotbar > your spells will open, you click on spell > your spell levels will open, you click on spell level > you cast. ... I cant quite understand how can anyone find this effective way, but w/e.

And finaly, bcs this is allready quite long post for just repeating the same that was allready told in the past ...
I would really, really, REALLY wish to have option to put in my hotbar both spells that will give me popup window with all spell levels, and spells that are specific spell level ... personaly i dont quite see the reason, why should i pick between Mage Armor level 1 and Mage Armor level 2, since it both give me litteraly same AC bonus ... therefore all i need in Mage Armor level 1, since i would never spend level 2 slot for it ...
Need to choose spell level before every cast is not gamebreaking i know, but its anoying ... and personaly i find it unnecesary.
//edit:
OH! One more little thing! Its not exactly hotbar related, but its about icons so i iclude it here ...
I would also like to ask Larian to add spell level numbers on EVERY SINGLE SPELL ICON ... and in case of those POP-UP windows, give there lowest possible spell level ... Why?
That is easy, its much easier for new player who dont yet memorized all spell levels (like myself ofcourse) to plan its futher move!
Example:
He can simply look and see that he have 2xLevel1 slots, and 1xLevel2 slots remaining ... then he (i mean i) look at his hotbar and see spells he have at his disposal ... and thinks: Well, i can cast this Level2 Magic Missiles, and if that bastard survives, i can easily use Misty Step to get out of his reach (you guessed right, he thinks that, bcs Misty Step have no spell level indication on his icon ... so he logicaly presumed that its level 1 spell) ... he cast his Magic Missiles, and he is screwed, since he cant use Misty Step anymore ...
BUT (and its a big butt) ... if every single spell would have spell level indication on his icons (and preferable some indication for concentration in other corner) ... he simply look and see, without need to check tooltip of every single spell on his hotbar ... that if he wish to have possibility to run still prepared, he need to attack with level 1 Magic Missiles.

Please let us fight against NPC ... not our own UI. :-/
Well, that is it.

7 relatively easy steppes to make Hotbar much better tool than it is.
