The Renvant has the ability to channel spirits from the Mists. We have heard about Jalis Ironhammer, Glint, and Mallyx the Unyielding, but there are some legacies that have been forgotten that could come back in a cool way.
Via the the Hall of Monuments, those that achieve the title “Champion of the Gods” are able to access a channel skill that summons your PC from the original Guild Wars.
Its a crazy idea that may not even be viable, but I its worth a mention for the fact our heroe(s) in GW laid the foundation for much of the lore GW2 relies on.
“Look like the innocent flower, but be the Obaba under’t.”