i hate lists, but here goes...
as long as romances are tangential and optional, i don't care what bioware does with them. ever since the days when dave started looking for feedback from the ladies of nwn site, romance in bioware games has devolved. the game romances are necessarily limited and insular, and the fact that they have become little more than an ego-stroke mini-game makes them tacky. but that is my opinion. obviously many people like them, so as long as the romances continue to be optional and insular (ironically those are the very elements that limit their potential,) i will not complain, or care.
cac? that is a horrible abbreviation/acronym. nevertheless, there isn't much of a correlation between the depth o' character generation options and the size of the game. do the biowarians still like to use the "zots" terminology? i guess it doesn't matter. if you are only concerned about your character's appearance at creation, then there could be some sharing of art zots, but those are the aspects of character generation that interest me the least. soooo
your third concern... well, i can't actually find a concern. you observe that the appearance and gameplay of da:i will differ from da:2 (presumably da2) but there isn't a specifically a concern attached to that recognition.
i have no doubt that some people will have difficulty with importing-- people always have such problems. every bioware game that has had importing/exporting has involved problems minor and major. if you want to go back to bg2, you will find a list of things that didn't work correctly with exporting. that being said, given that we are not continuing the story of the da:o or da2 protagonist, the exporting issues are somewhat limited. i was actually surprised by how little my da:o actions impacted da2 gameplay, and if we want to bring up the me3 fiasco... but we probably shouldn't. if i was continuing da:i with hawke, and my import were borked, i would be disappointed. da:i export import Will be broken for many people. you can count on that. *yawn*
your remaining concerns all require that da:i players will be stupid to the point of insensibility and/or that bioware is incompetent beyond belief. for instance, if bioware cannot handle introducing new characters such as Vivene to new players, they really should get out of the crpg business. no joke.
to sum up, you are worried about non-traditional romance options and you are concerned that da:i is different. i, on the other hand, don't care about the bioware romance options, and i Hope that da:i is different. da2 did some things well, but to be perfectly honest, the game felt rushed. recognizing that da:i will be different doesn't guarantee that it will be good, but i am not complaining about a sea change change from da2.