I was too eager to report on this before doing proper research, but TL;DR, this doesn't really mean anything new compared to Xenia Emulator. The only recomp going on here is in the core, not the native game code.
More info posted in the quoted thread.
A surprise recompilation of GoldenEye XBLA dropped just a few hours ago!
You can play the Community Edition on it for all the fixes over the years. Online support, high framerates, filters, and possibly more to come.