I would like to see romantic options in the game, if the writers feel like it fits. I would perfer for it not to be forced or included just because we want.
I always enjoyed them because I've always felt its part of my adventurers story. I understand their is usually an over arching plot like or adventure where the world faces a great evil for the players to overcome, but as a roleplayer and a DM the most memorable moments are rarely player and enviroment but interactions with in the party it self. What happens when you have those 6 people from different places and throw them together to achieve things.
But what each companion started adventuring for is rarely the same. I liked the romance options like many others in BG2, but having played a paladin, helping Anomen achieve his knighthood was a close second to my interactions with Aerie. I love the interactions between companions and the growth of their characters. I really perfered NWN2 to first in that aspect.
I would like to see companion questlines but I would perfer them to not be based around the romance, but usually around the companions history if the romanace changes dialogs or outcomes thats alright but I would like to see multiple outcomes regardless.
I don't really feel the need for cutscenes I mean I don't really remember many cutscene type event occuring in any of these types of games. I would like the romance to end well, but I've never felt that the inclusion of "sexytime" is needed, If the writer so desires a quick blackout and skip was always fine by me. On the actual conclusion of the romance It would depend on the companion and interactions, for some marriage may be the end, or simply an agreement to keep traveling together.
To address concerns about wanting this to be like a bioware game, I feel more like BG2 is an iconic example of the old Isometeric RPGS that Project Eternity is attempting to revive much like Icewind Dale, Fallout, and Planescape: Torment. I've played a great many of biowares recent games and I still feel BG2 out does many...especially after the introduction of the Wheel. I enjoy reading and actually understanding what my character is about to say and I would perfer to have more than 2 choices please. I should be able to be respectable and nice to a female character with out automatically locking into a romance.
On another quick companion interaction note: I hate all the conversation building ocurring on the ship/or by the campfire. I much perfered games where they were random on entering areas or spread out as your adventuring, not oh I completed a story objective lets go talk to everyone now and see if they have anything to say.