@Tactical-Ochoa The future is not set. There is no fate but what we make for ourselves. (I know that's not an exact quote)
But we could have a nerd debate about that all night. Ultimately, that's the great thing about fiction. it can be what you want it to be.
I like ending the show with "Good bye and Good Riddance" partly BECAUSE it conflicts with AF.
I always saw Ben 10,00 and Ken 10 as two separate alternate worlds. (For one thing the same kid is in the background of scenes in both episodes and hasn't aged ) So they happen at about the same point in different timelines.
But again, it's fiction so it can be what you want it to be.