They're giving the Dark Phoenix storyline another go. I'm assuming this will be the last of the X-Men in their own little cinematic universe before they get thrown together with the plethora of Marvel superheroes in the MCU. Unfortunate, as that universe is pretty crowded as it is, and I am not a fan of the multitude of crossovers that the MCU has to offer. In my opinion, the X-Men have always done it better. This looks to be a good one!