He was in the preview art for the next issue on CBR.
 
It's possible it's a dream sequence, but god I hope not. Holocaust meeting his 616 dad is something I wanted to happen so badly a decade ago. I also hope he gets to slug it out with Stryfe.

Nice. I don't think they've used 616 Holocaust yet.

Holocaust was my favorite villain in the AoA I even played him on a MUX at one time.  If he's back in the 616 I'll do the "Dance of Joy"

Then, will King Hyperion or members of Exiles appear?

There's no logical reason for it to be earth-295 Holocaust

"There's no logical reason for it to be earth-295 Holocaust "

awesome Holocaust was a cool villain just his "death" was lame glad it wasn't final & deadpool kicking him off logan come on lol ..

" @fesak:  I actually think it's less logical and more far-fetched to have 616 Apocalypse to have a kid for all this time and for not only nobody know about it and for him in to be in exact the same predicament of having to wear a containment suit due to injury.    I'd have to find it, but Mike Carey mentioned once that with Holocaust's powers it was likely he survived being snorted up by Hyperion. "

hard to say either way.
as far as what happened to the AoA one sometimes stuff like that is easily (and usually cheaply) rewritten.
as for the containment suit his last to current one was actually a new replacement built in the 616 universe
for the one that was shattered by the M'kraan Crystal. guess we won't know until its official, and Holocaust 
rules anyways, so i'm down for what ever universe he's from.

" @fesak:  Maybe he misses his daddy? The 295 one is toast. "