cw8: I waited for the original for years like a rabid dog just because they claimed it to be the spiritual successor of Baldur's Gate, and at that time there was a serious lack of cRPGs. I liked the original and thought it somewhat worthy of the spiritual successor title. DA2, however, is easily one if not the the worst RPG I've ever played. So I need to take caution of DA3.
I was really disappointed with the original, and only recently I have actually managed to get trough my problems with it and am actually in the process of finally finishing the damn thing right now. Baldur's Gate is what I expected for sure, nonetheless Baldur's Gate was not what I got - Dragon Age: Origins was a lot more linear and closed off experience, which did not make me particularily happy to say the least. The generic storyline, at least from what I've seen so far (got to Deep Roads now and I left that to be the last of the traditional "tier 1" quests in Bioware games) didn't make me particularily happy, and I just got bored of the game's encounter design, which I still consider its biggest weakness (I dislike dungeons in DA: O even more than I disliked those in DA2, believe it or not. At least in DA2 they were short.) The biggest mistake I made in the previous attempts at playtroughs, however, was not disabling AI. I'm enjoying the game soo much more now that I have disabled any semblance of artificial stupidity and scripts all of the characters had and just micro everything by myself.
Playing DA2, on the other hand, was just plain fun. Aside from some weird lore issues like killing Revenants really easily, I just loved the storyline and how it was presented. I always felt that the biggest problem of DA2 was that Bioware attempted to do Mass Effect in Dragon Age universe, which, for one, was a really stupid marketing move as people expected something entirely different, and second, we've already had a Mass Effect, and it was far better at being Mass Effect than Dragon Age 2 was. But I really enjoyed it. I just had to shatter any connections to the original, which is not something you should ever do in a sequel.
And so, now we've got inquisition, which promises to be open world, and that gives me a lot of hope. I mean, that's what I loved about Baldur's Gate after all. And it's supposed to bring the tactical combat from the original back (I just hope they leave the encounter design behind). And it seems that the storytelling has taken a lot of cues from the second game, which I sure as heck am not going to complain about as I find the second game's story to quite simply be superior to the first one's. All in all, albeit I'm sure people are now going to go "Dumbed down console port herp derp!", from what I've seen from Inquisition, it might just be the Baldur's Gate we've been waiting for, updated and polished up into a proper, story-based experience. Eh... Make of that what you will I suppose :D