It's going to take a while, though.
As reported last year, Polytron issued a major update for their innovative platformer last year that led to save file corruption in a small percentage of gamers. The small company was ostensibly unable to afford to fix it due to the high cost of re-certification, meaning that the glitched patch was eventually just rolled out regardless.
Now, however, it's finally getting fixed. "GOOD NEWS EVERYONE," Fish tweeted, perhaps doing his best Dr. Farnsworth impression, "we're going to patch FEZ on XBLA!"
"It's going to take a few months, though. But we're doing it!"
The massive expense of issuing DLC and patches has led to several XBLA games falling behind their PC versions in terms of updates and post-launch content. With luck, Microsoft's new policy will help to rectify that, while leaving independent studios with more cash in hand.