Possible future encounters/primals

[Enkidoh]

FFI Fiends are highly unlikely, given two are already in the game (Tiamat is a benign dragon npc in confinement in Azys Lla and definitely bears the player no ill will, and Kraken, is the end boss of no less than two dungeons: Hullbreaker Isle NM and Sastasha Seagrot HM), so that just leaves Lich and Kary/Marlaris/Marliath, which, I presume will show up in some form probably eventually, but not as a full set.

Really instead, I see the FFIV Fiends appearing instead. The Magus Sisters would also be great to fight as well.

But the previous FF summon I would love to appear in FFXIV eventually would be FFVIII's Doomtrain (no, FFVI's Phantom Train in Omega: Sigmascape does not count, as it's something completely different! ). And SE themselves have long hinted at it in multiple locations, so, fingers crossed!

[Cilia]

FFI Fiends are highly unlikely, given two are already in the game (Tiamat is a benign dragon npc in confinement in Azys Lla and definitely bears the player no ill will, and Kraken, is the end boss of no less than two dungeons: Hullbreaker Isle NM and Sastasha Seagrot HM), so that just leaves Lich and Kary/Marlaris/Marliath, which, I presume will show up in some form probably eventually, but not as a full set.

I'm aware that Tiamat and Kraken (well, a kraken) are already in the game as unrelated NPCs, but the fact that Halicarnassus exists as both a dungeon boss and raid boss with no connection beyond the former being the naming inspiration for the latter opens the possibility of alternate versions of Tiamat and Kraken being connected to the Four Fiends, assuming they all show up as a group at some point. XIV is very often touted as a nostalgia trip - how do you get more retro than the Four Fiends?

Unless, of course, it's not really about nostalgia...

Ehem. I'm not opposed to the Four Archfiends of IV but I'd still appreciate the original Four Fiends from I.