Wow! Gratz to GT5. Even keeping into account the necessity of building up supplies for Xmas season, VGC should adjust its numbers a few hundreds k up, but I guess after January-February clearance sales it will be a better moment to do it reliably.
About GT6, I can see it most likely on PS4, with a GT6 Prologue soon after console launch and the main title later (but sooner than GT5 was).
All this is good news also for racing sims in general, now I hope to hear something about rFactor 2 and Project CARS release soon!