DISCLAIMER: If you have not seen Logan yet, there are MAJOR SPOILERS in this graphic. Be sure to bookmark this to come back to later once you have seen the film.
With the release of Logan, many people have been speculating as to where and which timeline the film takes place. Many timelines go as follows - First Class, Origins, X-Men Trilogy, The Wolverine, Days of Future Past (2023), Days of Future Past (1973), Then Apocalypse, Days of Future Past (Fixed 2023), and ending with Logan.
However, I refuse to follow this timeline as that would mean no matter what, all of the X-Men and mutants will die horribly. It would also make any sequel or sequels to Apocalypse seem unnecessary as we now know they will die later on. In my timeline, I've theorized a situation as to where there are three timelines resulting in at least one timeline where the X-Men and the school are left in a normal status. I'm not saying this is the correct way, but it is the way that I like to look at the X-Men timeline.