Associate
In their words, they have said all games available digitally on Xbox 360 are technically available, they just need licencing for it to do so, publisher don't even need to lift a finger.
I've been voting for the likes of Skyrim to be published next on here:
http://xbox.uservoice.com/forums/298503-backwards-compatibility
Yeah, that's what I've read too. The end goal is to probably have all 360 games available to play on the One.