31/1 - Characters' max level is increased to 250!

I mean, there is also proof to the contrary. With the new jobs being released (Demon Avenger, Xenon) and the Cygnus revamp, they'd have to create 5th jobs for those characters as well. They just continue to shovel new classes out the wazoo, with no indication of focusing on higher level content. And don't get me wrong, I never said 5th job wouldn't be possible. I just said it's a long way's off at best.

Right, and on the flipside, if they can keep pumping out these new classes, they can quite easily add one extra job advance to every existing class. You're severely underestimating the development team. They could even take this the route of hyper skills, and release them in batches. They don't NEED to be all at once.