This screenshot is recently from the Developer Rare, which shows what looks like an icon for the Perfect Dark 64 game, which everyone’s been dying for.
The game isn’t even on Xbox Live yet as a rerelease. It was sort of hinted that they’d bring Perefect Dark over, since they’re bringing some classics back, such as Banjo Kazooie. It sounds like a good job, since everyone wants that game back now. Especially with the option for DLC and the online multiplayer capabilities for. If Perfect Dark 64 made it’s way to Xbox Live, as a re-release, no doubt it would be popular.
IGN asked Microsoft about the image, and they responded saying they had “Nothing to announce at this time”.