Barry saves Mom.
Slightly younger Barry, in costume and hiding in the doorway, DISAPPEARS.
This suggests Barry never became The Flash, or at least never went back in time to save his mother.
Why does slightly older Barry, also in costume, NOT disappear? Hasn't his reason for going back in time also turned to vapor? If the slightly younger has vanished, why not the slightly older?
And, for the free cotton candy, the final question-
Thawne was laying on the floor after Barry put his lights out.
DID THAWNE ALSO DISAPPEAR? Hmmmmmmmm?????
Think this Barry create da Flashpoint here, and that the big result will be that there will be but one earth now, and that on his world will be the Jsa, and kara and her scooby gang!