For those that aren't quite aware, the lore tab of Psychopomp mentions a lone Skyburner who's been surviving as last of his Legion inside of the Dreadnaught for a while- Olgurn.

Now, with Act 3's release, there's a Taken Cabal- named Skyburners' Grudge that appears for one of the secrets in the new area.

I hope that's a coalecense of all the other Skyburners, and not just the most interesting Cabal character they've teased outside of Caiatl in the past few years burned up for a simple yellowbar secret boss...