Celtic Heroes

Nope. Am quite sure it will be a different seasonal mount every time. Think I read that somewhere here

I searched around a bit, but didn't find much, but yeah, I doubt they'll have a definitive (or even difinitive) answer as of yet.

It's hard for VR to be sure what will happen in a year's time. They kinda have to be vague, otherwise people will be bringing it up again next year if what actually happens is at all different (for any reason).

In regards to the hellsteed mounts themselves - my personal guess is that they won't come back again next year - the dragons didn't come back a year after they were released (though that doesn't mean they will never come back).

Probably true on the reasoning. Unfortunate catch 22 where if they don't provide info people complain and if they do provide info it turns into a contract that is irrevocable lol.

...and did dragons ever leave? As far as I'm aware, all premium pets (for pet slot, not the novelty ones: dragon, phoenix, seedling) that have ever been available in live gameplay have been possible drops in every set of chests since their introduction. Or am I missing something or getting confused? (very likely lol).

From a business standpoint it doesn't make sense to bring them back. Adding a new one each event makes more sense. A new mount appeals to current and non steed owners. It also puts pressure/drives players on obtaining/completing the mount before the event ends.

As much as I love my Steed I would rather see a Hell Wolf next year if I'm still around.

Dragon, Phoenix and Seedlings are premium pets that only drop from chest. Pretty sure they were never meant to be temporary.