How delightfully cryptic. Let's have a look at those ability names:
Might of the ??? - Not sure about this one.
I have The ??? - Power or Force, from NotB.
His ??? Strikes Fear - Name, from Alexander the Great.
So it shall be ??? - Written, from SSoaSS
Tell the ??? to all - Tale, from Ancient Mariner.
Rolling, Turning, ??? - Diving, from Aces High.
Live to ??? Another Day - Fight, from The Trooper.
Apart from the first one, the other six all refer to songs from the early Bruce Dickinson albums. The "Now, Scream for me" part in the description further points towards a Dickinson connection. Something based on parts of the costumes Bruce wore in that era? If the artwork for the Somewhere Back in Time live album wasn't a Cyborg Eddie, that would be my guess. And we already have a Legacy Eddie. The Voodoo awakening shards are a further complication.
Hmmm, hear me out, the patch notes say "Someone... or something", which could suggest a very out there character design. Let's get a little wild with our speculation here, and take a look at the awakening materials again. When you hear the word "voodoo", most people will think of voodoo dolls. What if the new Eddie is the giant Eddie costume that wanders around the stage during Iron Maiden concerts? Or maybe that's still too conventional, and we need to get even stranger, and think about the stage itself, with often has changing backgrounds to match different songs. I think we've solved it folks, the new awakenable cosmic eddie is a music theatre, scaffolding and all
Looking forward to finding out!