What direction do you want to see Urgot's lore go?
Title
I'd like to see him stay as a high ranking Noxian who was sent to spy on Piltover. This would lead to Camille finding and chopping him to pieces, and Singed eventually finding and augmenting him. From there, Urgot (still thought dead by Camille) works to become a Chem Baron (possibly with help from other Chem Barons) who still works for Noxus by keeping a close watch on Piltover from under its nose. He would likely be the one all war masons go to with information as well as some one people are brought to for interrogation and execution; with him eventually dismembering their body and dissolving it in a vat of chemicals.
Dealing with his condition, there's two different ideas I'd really like to see. The first is that he's still fully alive and just severely injured and/or has a disease that slowly eats away at his body; thus forcing chemtech augmentation to stay alive. The other is that he is still undead, except he wasn't brought back via necromancy like Sion. Instead, he's been brought back entirely by science (Singed's science to be exact) in more of a Frankenstein's Monster fashion, except he's not a mindless zombie.
kinda fills the whole "undead abomination"-niche already,so it would look a bit repetetive if he was one as well.
And him clinging to life even in this condition would honestly feel more fitting anyway.