I knew you would say that, oh well. I mean I guess, whatever, I don't really think that's enough of a wrench to throw. Changing the logos that much is a pretty conscious choice.There's no precedent to numbered sequels to mainline Pokemon games.
It's just wishful thinking that it's Hoenn though. I'm still thinking about how Masuda kept saying, prior to B&W, "We have something to prove with having a second mainline game on the same handheld" when he justified the reboot and faraway location. If he goes as far as a sequel to that, I don't think he'll just make a simple sequel.