Geomancer? Really? I just don't see it personally. Partially because they outright say 'yeh it's astro, but attuning to our star instead of the other ones in the sky' lorewise, but also because of what they'd have to do to the 'identity' of the job to jam it into the game. Since it's 'identity' is that it has a skill that adapts it's effect based on the terrain, my only assumption is that it'd be based around having 'zones' and standing in a 'zone' would change how it's skills work. Which would just mean it's 'ley lines: the job', complete with self-griefing due to aoes dropping on the terrain zone you wanted to stand in for your burst window. If I had to guess what Caster they'd add though... yeh, they'd probably cave to the masses and give us GEO. Which, now I think about it, would be doubly insulting, because WHM lost it's elemental theming.

As for 'Blue Mage again', I'd personally argue we didn't ever get Blue Mage in the first place. I've played a lot of FF games, but none of them told me 'sorry, you can't finish the game with the BLU in your party, swap to a different job to continue the story'. But if people really want to keep it wheelchair'd as it is for whatever reason, I'd rather see more unique stuff. Like I was hoping for Necromancer as a healer, rather than as a caster, because everyone and their ma does Necro as a caster. We got Sage which is cool in it's own right, but a 'darker' healer would have been an interesting twist.

But while BLU remains 'limited', the worry of 'well my favorite job is in the game, but it got limited' remains. Anyone who wanted to main BST or PUP might get screwed by it being 'limited'. BLU was a lot of people's favorite class aesthetic, copying enemy skills and throwing them right back. I just can't fathom why anyone would want to push for that risk, of someone else's favorite class aesthetic, to get kneecap'd and kept 10 levels behind, and for what? An 'identity' that was present in (to my knowledge) one other game in the series? Because it's got OP skills like LV5 Death, which doesn't even work in most fights because SE can just give immunity to bosses?

If I were working for SE I'd put GEO in, sure. But it'd be a tank. The caster would be, idk, Time Mage or something. Make it have attacks that hit 'in X seconds' like that Bratz doll looking goth from SHB raids, and have skills that manipulate the timers, like doubling their 'time till detonation', or instantly setting it to 0 to cause everything to blow up at the same time for burst window. Though, this would anger the AST players as they lost their Time manipulation stuff wayyy ages ago, so we're in the same boat as WHM/GEO.