I have to start by saying the movie was spectacular. It was probably one of the best of the entire franchise. I would put it right up there with the last Transformers movie, but with even more action.
I have a problem with Timeline movies. I do not appreciate walking out of the movie and thinking "So that last 20 years of my life watching Star Trek movies and TV shows just got thrown out the window because of a major timeline change?"
What if Anakin Skywalker did not become Darth Vader at the end of Star Wars Episode III? We would have to trash the original 3 movies (Parts IV, V, VI).
I could take the timeline change to save the whales.
I could sort of take the timeline change where Data sacrifices himself to save Picard, but leaves behind his memories in a Data twin.
I had a hard time with Enterprise's massive killing on Earth, but so far all things things maybe did not affect the future that we knew.
Now, at the end of Star Trek, there is a new timeline. No "Next Generation", no "Deep Space 9", no "Voyager", No original Star Trek movies.
Poor Gene Roddenberry
We are left with a new vision of Star Trek. I think I will like it. I may even love it. But I am left conflicted - The Star Trek that I know is now gone.
I will write more about this after I see how other's respond to the change in timeline. It is only SciFi.