Upcoming multi-platform title Metal Gear Solid: Rising isn't MGS4 with a fresh coat of paint. Oh, no.
According to the Kojima Productions podcast, Konami is developing a brand new engine for Rising to, as KP podcast host Sean Eyestone points out, "realise this multi-platform goal". What's more, Rising will have "better graphics" than PS3 exclusive MGS4.
"We're redoing the engine from scratch, and it's going to look amazing," says Eyestone. "It's going to be a big project like Metal Gear Solid 4. The entire team is serious about making it look as good as possible on every platform."
The title Rising is a pun of sorts. The Japanese pronunciation "Raijin" is a word play on a mythic Japanese storm god. The character name "Raiden" means "thunder and lightening" in Japanese. Geddit?
The title also has significance in English: "It's raising the Metal Gear franchise up to the next step."
Kojima Productions does in depth [Metal Gear Scholar]