What are you guys being so defeatist about? There's no full translation of
>>28686847, we just known that M-Garde is mentioned, it may as well be something along the lines of "... a move commonly used by Sylveon and M-Garde". Not to mention we don't even know what kind of a magazine it is. If it's not Corocoro, I don't see why anyone should take it seriously.
Anyway, so far no official source has confirmed that megas are still in. There are only some adverts made by shops or whatever not even affiliated with Gamefreak or TPCI, but surely no one would take that as a proof.
We have to still wait before we can celebrate banishment of megas.