Fate/Extra is an RPG set for release in Japan on the 22nd of July for the PlayStation Portable - its official website is at
this link.
It looks like you play as either a
Male or
Female Protagonist (new characters.. or rather, new placeholders for the person playing the game to operate) and run through what seems to be a Grail War set up in some underwater Tron-like environment. (whether it actually is such, or something else entirely, I'm not quite sure about.)
It also seems to have other new, or re-worked characters - such as a rival Master called
Leo (who looks a bit like a blond Waver Velvet) and new versions of Rider and
Caster.
Indeed,
Lancer (who seems to be partnered with Rin this time around) looks very Tron-ish, while
Saber has been re-worked design-wise - and will get a limited-run Figma model sold as part of a
special edition of the game.
So far, there's no word on if/when it will be licenced in the West, or if such a Western release (if ever) would be downloadable only (like
Fate/Unlimited Codes) or also released as a UMD.
Oh, and there's a
trailer, too.
And a
'fun site kit'.