Looks like there is a possibility of new skus quite soon after all? Either they are very far on with development and have managed to keep them quite or they are going to be very capable.
Looks like 580 / 480 successor competes with GTX 1070 (in DX 12) which means 590 probably with GTX 1080. IF the new magic sauce has solved the dx11 problems, could be a very good run.
Could Nvidia also be about to launch their refresh? or just a 1080 ti and see where things lie? I remember a little while back there was talk / rumour about their subscription service and priority on GTX 1080 ti (for 980 ti owners) if true, wouldn't this have to be anounced prior to launch and what better time than 28th? maybe it was just something they were thinking about, I think the rumour began from a job advert or something.