//A few months after 'em last post, I appear.
I'll just point out how the game can be created IF and only IF they can be made by collaboration of different companies.
For me, dis:
Key for the soundtracks, you can never go wrong with Maeda, Orito, Maiko, and Soshi.
For the story, there are many candidates, personally, I liked how Tanaka Romeo wrote Cross Channel, and how Tomo Kataoka did Narcissu2. Nitroplus can be good too (Steins;Gate and Chaos;Head).
Art: whoever did the art on Steins;Gate should do the art if the story comes from Nitroplus, all else: Pulltop (KonoSora), FVP (Hoshizora no Memoria), or Favorite(Grisaia no Kajitsu). Key can do the art too (something like Rewrite), if the story calls for it.
They can put H and All-ages versions (better if the H are separated, kinda like an after story)
Key styled heroines stereotypes are good, plus a Swan Song protag.
Pretty much sums up what I want to see in a VN. "____"