Although AMD has yet to reveal its next-gen Radeon, at least one developer has already been seeded with samples. Frostbite engine director Johan Andersson posted the following on Twitter this morning:
The image is tightly cropped, but the card looks just like the Radeon R9 390X depicted in earlier leaks. The cover on the top hints at the Radeon's rumored liquid cooler, while the venting in the rear I/O plate suggests there could also be some airflow within the card itself. Hmmm.
In any case, Andersson is a more reliable source than the usual rumor mongers. If he's already tweeting pictures of the next-gen card, it won't be long before AMD formally lifts the curtain.