I highly doubt this game could even be a "challenge" to Bioware; just look at how international websites speak plenty and lengthy of Dragon Age and Mass effect 2, but rarely mention Divinity 2. Just stating a fact here (besides, I do not feel much sympathy for Bioware's marketing choices - geeze, have you ever visited the Dragon Age forums and saw how they mostly talk only about sex scenes and virtual romances?

Feels like it's an erotic game, not an rpg.... ).
I too don't know much how Divinity 2's story and gameplay work out - I wish the developers showed us more of that. But I don't care, since in a few weeks the german version will be released, and supposedly some nice german player will post his or her impressions in these forums, and so I'll FINALLY know if Divinity 2 is more like Fable 2 or more like Oblivion or more like Neverwinter Nights 2 or else....
Drakensang is a nice game, what's wrong with it? My only big gripe about that game, is how you're basically forced to stay in a certain area for each chapter, which I found to be very limitating (for example, I wanted to go fetch the nazilooking elf dude as my henchman, but I found out I'm allowed to go in that area only by the end of the game. What's the point in that?)