Please start the new jobs at level 1

[Zaft]

They should just announce EXPANSION 50+ new players need not apply. If you didn't want FF14 before nothing new here till 50. They might as well have made them 50 since they are gated behind 50 content. If they had any rules about race change I am surprised that isn't "Please look forward to it." /whisper after you finish all the old stuff.

You realize this is what nearly every MMO in the history of MMOs does, right? Expansion = new, higher level, more difficult content. They might redesign or adjust some lower level stuff, but generally speaking, an expansion focuses on new content, not old.