The last time we've seen Hulk/Banner (resurrected by Arnim Zola this time) was in The Mount. We see him collapse before it gets blown up back in Secret Empire.
I have no clue about what happened to him between then and now.
Did he just lie there (dead?) in the rubble all this time?
Did this new challenger revive him somehow? And does he control The Hulk?
I guess we'll see
Before recently, Hulk had been one of the few A-list heroes to NOT die and come back from the dead.
Now it looks like he'll do it twice in rapid succession.