There are no possible confirmations on any upcoming episodes. Each new episode is written and produced in a single week. Nobody, not even the writers, have a clear idea what next week's episode may be about.
But anything is possible. "My Future Self n' Me" left an open ending, so a future episode may include Cartman's future self.
If you are interested, check out the fanfiction "Should've Listened to the Star Trek Dorks". It is a continuation of the episode.