My guess, is that he will be insanely powerful. Then he will underestimate us, and we get the drop on him.
I also think that one guy (don't know his name, but he's ghauls stooge) will either betray ghaul, or be the stories final boss with ghaul as the raid final boss.
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It's either that, or ghoul is the final story boss and then consul is the final raid boss