How many Boba Fetts do you need?
Marvel has a hundred Boba Fetts, and a dozen Darth Vaders, we can't keep them all in production at all times. A lack of immediate plans for a third (living) Bullseye does not equal retirement. Nobody is retired, except zombie heroes.
Is it possible to include zombie parts of superheros in these? Like a spider man chest in this and an arm in another and so on?