Well, I guess I'll jump STRAIGHT into spoiler territory, and say it was SUPER dope, seeing new incarnations of the classic Primals during the Eden fights!
But honestly, even though he was completely new to FFXIV, Ravana is probably my single favorite Primal in the game! He looked cool, he had some personality, and I LOVE the initial music theme that plays in his fight (not so much the last phase, which plays on his bird mount).
But I was thinking that, seeing as Ramuh and Ravana both appear to have some amount of sentience, in a way that differs from most primals (most others just mock you, Ravana seemed genuinely interested in honor), I half-wonder if we might request in aid in helping us overthrow their "Lunar" counterparts?
In any case, I would love to just some of these dudes return in some capacity.
ON ANOTHER NOTE:
I was recently thinking about how little we know of Odin. Most evidence suggests that his blade, Zantetsuken, is the ACTUAL "Primal". I'd heard there were allusions to their lore in Eureka, but I haven't had much luck progressing in Eureka.
But I was thinking recently about how it was kind of strange that we've never really interacted with a Tonberry tribe before. True, we've also never heard one SPEAK, but they at least APPEAR to be sentient creatures. Which made me wonder; perhaps either Odin or Zantesuken is actually THEIR Primal/god? It would make some small amount of sense, given both are widely known for their "one-hit kill" strikes.
Or perhaps THEY summoned the blade itself, and Odin actually has a different origin entirely? I'll admit, I was really surprised to see a "Lunar Odin", given how mysterious his origins seem compared to most other Primals.
In any case; Odin is definitely another one I would like to see get some screen-time! His design in FFXIV is freaking SICK anyways, and we've also not yet seen him wielding Gungnir, despite wielding it in pictures of the statue that came out a few years ago (speaking of which, any word if they will ever be made available again?).
Or, like the "Primals" we encounter in the Eden raids, maybe we could see more re-designs? I love FFXIV's Odin, but might be cool to see a more "kingly" version of him, ala FF7 and FF8.