The signs are all there and if you choose to think they aren't phasing them out that is your right but lets face it Marvel is phasing them out. I'll give you some examples.Marvel will be canceling over 30 titles because of Secret Wars. Not just F4. http://www.ign.com/articles/2015/03/18/33-marvel-comics-will-be-cancelled-for-secret-wars
X-Men are not getting phased out. They have plenty of Secret Wars titles and over a dozen of titles last year. Axel confirmed the X-Men will remain an important part of the Marvel Universe.
1 FF team books have been cancelled (Fox movie rights)
2 Wolverine was killed off (Fox movie rights)
3 Deadpool was just killed off (Fox movie rights)
4 Scarlet Witch & Quicksilver origin completely changed (first appeared in X-men #4 early 60's and they are mutants - Magneto's children) now they are inhumans, Magneto isn't their father. How many of the x-men are going to be messed up next to fit Marvel's Inhuman bait and switch.
5 Marvel can't use the word "mutant" so its being phased out and replaced with the Inhumans.
6 Inhumans origin changed no longer just a royal line from Attilan far side of the moon - Kree experimented on and has to go through terragen mist to become inhuman. Now more inhumans than every that royal line knew about - NY overrun with them.
7 Inhumans now feared and persecuted which made the X-men unique in that regard and part of their backstory.
Connect the dots. Gambit and the X-men are next on the chopping block. Unless fans rise up and make a stink Marvel will once again push their childish spat with fox onto their comic books and thus hurt fans once again. I'm not saying it'll make a difference but growing up the X-men adhered to me and got me into comics that I still read to this day. If you feel the same please take a second and vote.
http://www.thepetitionsite.com/355/831/399/stop-marvel-from-replacing-x-men-with-inhumans/
Like Spectre said this has all been fan paranoia.