sentences:  With the help of a younger Charles Xavier and Hank McCoy, they are able to prevent Mystique from assassinating Bolivar Trask, the event that would've led to the Sentinel-ruled future.At the end of the film, the original timeline is erased and Wolverine returns to a changed future while his younger self regains consciousness and has no memory of anything that happened.By 2023, around the time Logan would've been sent back in time in the original timeline, Logan is shown to have joined the X-Men and had become a history teacher at the Xavier Institute.