I never watched New Mutants, but haven't heard anything very good about it. I may get around to seeing it at some point, but it's way down the list of movies I want to see.
And I'm not sure how the X-Men movies slot into that universe now. Dark Phoenix was mehhhh, but so was Apocalypse. Days of Future past was the last good movie, along with Logan, from the X Universe. And yes, a very similar scene was in X3: The Last Stand.
Now that Marvel/Disney owns Fox, I'm kind of expecting a reboot of the entire X Universe. Which is too bad really, as Fasbender and McAvoy both nailed the roles as Magneto and Xavier. They do need a new Logan/Wolverine though. Although Jackman was great in the role over the years, he's too big (Wolvie is 5'4") and he's getting to be too old to continue the role going forward.
I'm excited to see what they can do now that mutants are part of the main MCU, and I hope they can incorporate them into it much sooner rather than later. We already know that the FF is coming.
As a Marvel, and comic book fan in general, this is a great time to be alive.