Agreed, though I'm interested in what you mean by "supposed to."They should end where they were supposed to. If they're being continued beyond that point then there's clearly no intention to end them. What I LOVE about manga is that it's the story of one person and has a clear beginning and ending. Continuing them beyond that point with new creatores takes that special thing away from it.
I doubt Super's resurrection was a result of the relatively recent trend of reviving shows/movies long since thought to be over, but it is interesting timing. I haven't seen Super but given RoF, what I've read about Super, and the tendency of revivals to suck, I can't help but think it's a bad idea to revive series once they end. Even with the same people involved, sometimes you can't recapture the lightning in a bottle that made these shows special to begin with. I know everyone blames the suits, but it's not their fault that people want them. I'm also well aware of the irony of me making this statement as I watch many of these revivals regardless of quality.