10.2 PTR may have some hint on 11.0. The reveal is almost certainly going to be out at Blizzcon. I think it's entirely possible to have 10.2 out in late October with the race finishing right before Blizzcon and the major 10.2 cinematics out so Blizzcon would reveal 10.3 and 11.0 So I'd say we are likely to transition to full speculation by late August as long as at least some type of hint is out there from the 10.2 PTR.