Just imagine it's the year 2024 when @cwtheflash
ends on season 10. It skips to 2056 Where we see an old Barry Allen sat with his grandchildren looking down at a rusted photo of his younger self.
2056 Barry narration
My name Is Barry Allen and I am the fastest man alive, to the outside world I WAS an ordinary Forensic Scientist, but secretly I USED to fight crime with my friends at Star Labs. But then a war came which changed everything, Cisco died, Caitlin went full Killer Frost again and Ralph left to be with his beloved wife. But I can't go on anymore, I'm old and weak and can't keep going so I am leaving Central City safe in the hands of the generation of speedsters. I am...The Flash ⚡
End Credits ⬆️Something like that ⬆️