Future Primals and potential implementation into lore.

[Enkidoh]

I wouldn't mind seeing some of the espers from 12 like Belias, Zeromus, etc.

Except half of them already are in the game, as regular bosses/monsters (except for Belias as an egi version) - Cúchulainn is a boss in Void Ark, Mateus and Hashmal are bosses in (fittingly) Rabanastre, also technically Exodus is in the game, as he is actually based on FFV's X-Death, who, of course, is in FFXIV as the final boss of Omega - Deltascape.

And story wise Ultima appears as an Ascian in one cutscene during the ARR patch storylines (albeit with her original PS1 FFT mistranslated name of 'Altima'), and Zodiark is naturally in the lore as the 'one true god' of the Ascians (who is in stasis on the Primary Moon), so it is kind of inevitable that we will have to take him down sometime eventually.

So yeah, I expect the other FFXII Espers to show up eventually as regular enemies too, but as actual Primals? Unlikely, given the previous ones are just regular bosses as listed above (I doubt the writing and lore team even considered Belias being anything more than just some momentary fanservice sadly - the fact the egi is just literally a palette-swapped Ifrit-egi kind of proves that, it didn't even get a new model).

[NewAgeDoom]

Except half of them already are in the game, as regular bosses/monsters (except for Belias as an egi version)

snip.

Ah, I wasn't aware of that. Granted this is my first character, and I'm only Level 60.

A bit disappointing about Belias. First summon in FFXII, and it's a palette swap.

Wouldn't mind seeing other things like Valefor from X/X-2, Atomos from IX.