First: Hi Feargus, Chris and all of Obsidian, who's work on past games I have enjoyed immensely!!
I look forward to great things from you soon. (no pressure).
Second: As this is the suggestion thread.......and at a risk of sounding DUH! here goes:
There are many aspects to a great CRPG game and we can all rattle them off forever. However, I think it is apparent that it is the RP part of a CRPG that makes a CRPG truly great. And, of course, this is usually the most time consuming and most difficult to accomplish. Again, which is why there are so few great CRPG games around.
Your previous work set new bars for world creation and in depth role playing. I do not think the immediate future is to make the RP world bigger, rather my humble suggestion is set the 21st century CRPG at a 21st century level and to me that means in the end a greater focus on replay-ability.
The ability to replay a game with a "new/different" character, with some different dialougue, different events, different endings, maybe a different antagonist is, to me, the true icing on the cake. And what's a cake without icing?!
And for all those who are saying now....Duh, this has been done before!....the point is....exactly....my suggestion is that replay-ability be polished in your new games, be it PC or Console.
Good Luck!! And if you need a beta tester......... :D I'm just an email away.
Thank you.