What makes you think Avellone wants to write Biowarian romances? I don't know what his position is on romance/sex minigames, but I certainly don't think it can be assumed that he would want to write the game equivalent of romance novels or melodramatic soap opera stuff.
I'd like to think that he would think it is as stupid and frivolous as those of us in the anti-romance faction and if that's the case I wouldn't go expecting some kind of well written romances. They'll probably just get some female staff member or intern to write them up. Surely MCA has more important things to write.
As far as romantic sub-plots, this is not something you can ask for. Either love will be an integral (and non-skippable) part of the main story or it won't be. It can't just be shoehorned in. At least not without ruining the rest of the story. I haven't heard anyone in this thread complain about Deionnara in PS:T. That was a genuine part of the central plot. It fit in perfectly and there was no cutscene of TNO doing her from behind while he yanked on her ghostly pony tail or the text equivalent.
The non-skippable part would be terribly awkward in a game with an open-ended player character. It's one thing for The Nameless One to have a set, past romance, because he's a somewhat defined character with a specific past and gender. But if I'm permitted to choose my character's race, subrace, gender, background, and so on, it becomes much more distracting if the game then mandates my character's sexual orientation (particularly since I'm a woman and any mandatory romance is likely to be with a female character).
I'm not saying that every taste needs to be worked into a game, but I think one with player-defined characters should at least let you avoid the romantic content if it seems inappropriate for your character concept. I think there's a middle ground between romances that influence and interact with the plot and those that are mandatory.