God of Worms and King of Worms are the same and yet distinct.
And I still hope they don't consider "Mannimarco" to be that foppish pansy in a bad Halloween costume. I demand a retcon.
I don't think we need a retcon. Warp in the West plus conventional wisdom of gods having aspects makes it pretty clear.
I love how the fans' reaction to his portrayal in Oblivion was simply "Nope, nuh uh, that wasn't him." I can't think of many other games/movies/books where something has been retconned solely by popular opinion, but we seem to have pulled it off.
Well, it's the god-aspect thing. If Akatosh could be created by popular opinion accelerated by a Dragon Break, why can't Mannimarco reverse it? Where Alduin/Auri-El are both distinct from and yet are Akatosh his man-brother, Mannimarco the Necromancer and Mannimarco the god can be both distinct and yet the same being. The groundwork for making it all work how we like is all laid in the lore itself, therefore we win.