Mass Effect
It’s not going to happen, but think there’s room for a remake/update of Mass Effect 1. Give it the Mass Effect 2/3 combat system, maybe some hybrid between planet scanning and the Mako…
Mostly I just want to be able to take a character across all three games. I know I’ve chosen my camp with the PS3, but still, it almost feels…culturally important to have that continuity of character. Like if Lucasfilm said “Star Wars IV, V, and VI are coming to DVD and HD-DVD, and Star Wars V and VI are coming to Blu-Ray!” (Wait, Lucasfilm might actually do that.)
Alternatively, Bioware could give us an updated tool to create a character for the start of Mass Effect 2, including more decisions from ME1. Since the story is concluded now, they don’t need to hide which decisions are important or not anymore. Either that, or allow players to transfer a save file from ME1 on PC to ME2 on PS3; you sell more copies of Mass Effect, and that’s a win.
It’s all very unlikely to happen. And that’s sad.
Barry Figgins 
Thinking about it more, this is a unique situation for video games, isn’t it? Movies and books might not be released on a particular format, but it’s not really harmful if you have to switch between formats to experience the entire story. But with video games, it can be important to experience a series continuously on the same platform.
So while it’s not financially or ethically necessary for Bioware to bring ME1 to PS3, it almost seems culturally necessary. Like this series needs to be preserved as a complete package.
I came up with another metaphor: it’s like if they translated The Lord of the Rings to Korean, but didn’t translate The Hobbit. You can totally enjoy the full story of The Lord of the Rings, and you can read wikis and websites about the plot of The Hobbit, but you can’t truly experience the whole story from beginning to end.