Maggot was killed?
I mean. Yes. But he's been brought back already, right?
Maggott was later revived using magic and the techno-organic virus to aid in Selene's assault on Utopia.
In the meantime reality shifted.
He seemingly survived the event and, along with his two slugs and allegedly the whole mutantkind, attended to Cyclops' speech at Washington, D.C. about the peaceful Mutant Revolution (Uncanny X-Men #600).