I think you have some really awesome Ideas. As far as the "pairing" based games, I could go for an alien x human style game, provided we did have more to the story than "Oh somehow there's an alien and these two just like each other for some reason" style romance. I'd want to see some story, or conflict first through which they could bond. Perhaps an abduction goes differently than planned, or a ship crashes and one character rescues the other? Romance makes a good genre, or background genre, but it isn't a story for real. There's got to be a plot. Something going on that explains why their romance is growing and developing, or what they go through that challenges it.
Also, I saw a few of your other fandom ideas, and have a few sort of "obvious-influence original" ideas that I'd be interested in developing or discussing if you'd be interested in brainstorming.
Though, I have to say as a preliminary. I am naturally very busy, and writing is my outlet. However I will not be able to get in a post a day, due to my packed schedule. I've been told I write on an advanced level, and am more than willing to provide a sample of my writing by which you can judge for yourself, but whatever level I write on, it generally takes me a day or two, or often more, to be able to pen a post I feel is worth putting up. So if you're primarily looking for a speedier game, then I'm sorry for having taken up your time.