Again to the Future ending sees a unique Marty McFly based on new fan principle | Movies | Leisure
They added: “This ‘new’ Marty, or Marty 2 grows up within the newly altered timeline that, fortunately, isn’t altered sufficient to forestall him from assembly Emmett and thus, permitting him to return in time.
“So Marty 2 goes again in time on the identical evening Marty 1 did and winds up being witnessed by Marty 1 that very same evening.”
Within the feedback, one other fan questioned if a brand new timeline would at all times be created.
Reddit person SpideyFan914 wrote: “So what occurs to Marty 2 anyway? He gonna alter the timeline even additional and wind up an entire new timeline 3?”