Looks like I'm in the minority, I actually like that the story is still ongoing introducing new elements, hopefully not axed soon.
Better that permanent hiatus.
If Iris becomes the pov protagonist it's actually pretty refreshing, or rotate the protagonists between the other casts with Alan appearing here and there.
Idaten has the reproductive organs but they're pretty much nonfunctioning just like all the other organs. If they don't need eyes to see, pretty sure they can't reproduce.
Looks like this won't be a multigenerational story after all, as I expected it to never be.
The artist must finish the story while Alan is still alive.