Board Thread:Manga/@comment-27441457-20170608195407/@comment-31641135-20170629073130

Can Titan serum revive someone who's already dead though. I dno if it's been mentioned but theoretically, they could revive Erwin and pass on Eren's power to him. Eren could have a kid I mean all it takes is one time it could be the day before the days he gets someone pregnant so it's a possibility, however, i doubt it would happen as there's no real need for it.

Although saying that Grisha was willing to farther Eren for the years he could so he must have been willing to allow Eren to go fatherless at some point Eren could do the same. If he had a child with Mika I think the kid wouldn't be able to turn into a titan due to Mika's blood line if I'm getting that right so unless he wanted a child to pass the power to then the next candidate based on other people's views would be Historia. Or some random geezer.