The return of the king..?
Baraggan Louisenbairn from Bleach as a Togabito (Sinner of Hell) or.. more appropriately, as the KING of Hell.
After getting defeated at the hands of Soifon and Hachi, Baraggan fell into the depths of Hell. He somehow managed to either defeat or manipulate the Kushanada (Guardians of Hell) and gained their power (similar to the power Ichigo received in the Hell Chapter movie) and became the "King" of Hell and the Kushanada.
Its rather appropriate, hes basically a god of death after all.
Though he is the new king of hell, the other Espada who fell aren't under his control or anything, they're all pretty much split up in different areas of hell.
Like the other Espada, the atmosphere of hell transformed Baraggan's soul from that of an Arrancar into a Togabito. He is no longer able to use Resurreccion, but his new form is kind of like in between, but he also has some new abilities as well. He can still summon his ax from his Resurreccion and use his powers over aging.
The power of the Kushanada also allow him to reach an even stronger form.. which I shall draw later..