S.H.I.E.L.D. managed to bring Brett Dalton back despite his character dying a number of times, first returning as the host of Hive and then as a hero within the Framework.
He also definitely has a point about S.H.I.E.L.D. subverting expectations, even in a genre as wild comic-based.
Hunter is still very much alive, so it wouldn’t even take any leaps of logic for him to return once Coulson and Co. make it back from space!
Nick Blood’s comments to TVLine give reason to hope.