I guess I just don't see why "waiting since KH2" isn't valid. Yes there have been other games between then and now but with the exception of BBS they've been essentially stalling tactics. Let's say the most wildly optimistic scenario turns out to be true, and KH3 by some miracle makes it out in 2018. If you were Sora's age, 14, when KH1 came out, by the time you get to play KH3 and finally see the story finished you'll be 30. That's fucking ridiculous.
In the last four years of X-Play's existence, the most common question we got from viewers was, by a very large margin, "When is Kingdom Hearts 3 coming out?" The fact that we still don't know the answer to that question four years after X-Play went off the air is absurd.