His Goominess said:
So apparently a poster or something featuring all the Mega evos from ORAS has been leaked on the interwebs
http://imgur.com/oKJWFfF
*NOTE* This is unconfirmed and could very easily be fake - don't get your hopes up.
I've seen several people on facebook say they've seen this and can 'confirm' its legitimacy (but obviously not a reliable source), and some people even claim to have the same poster. (again, unreliable)
The things that are drawing me away from this:
a) no reliable source. I've only seen this on fan pages on facebook, and we all know how gullible people are on the internet.
b) the Pokemon. The ones on the poster are all ones that have been hugely speculated to Mega Evolve, and some seem to be fanservice (Flygon, Salamence, Metagross)
I'm not sure if this has been around before Mega Sableye was revealed.
For now, I'd take this as fake - I am, at least until we get sufficient evidence (by that I mean like at least half of them confirmed as Megas).
One thing that tips me off as it being fake is that the poster says "New Mega-Evolved Pokemon!" However We've already learned that Mega Diancie will be a new Mega in the game, yet her silhouette is left out. It couldn't be because she was already revealed, because she was revealed AFTER Mega Sableye and his mega is in the screenshot right next to hers. So that sticks out to me. I will also say that I disagree that this is alot of new megas. I think it's an appropriate amount considering we might not even have access to all of the previously revealed megas in game and some being version exclusive. Even though it's a remake, Hoenn did have Pokemon from others gens in the pokedex that could very well get megas. I don't see why the new ones would all have to be from that generation. Especially when most of the megas already are either 3rd gen or available in the 3rd gen pokedex.
I want a mega Bellossom.
I also don't think megas have anything to do with being "rare." It's just an extension of your pokemon. I would think that in the future we will see alot more megas. Right now there are over 700 Pokemon and only 37 current megas. This number is including the 6 unreleased megas (Swampert, Sceptile, Latios, latias, Sableye, & Diancie) and counting both of charizard's and mewtwo's. There are alot of Pokemon that deserve a Mega and I'm sure GF would invent more so that there would eventually be vast diversity. With the limited number at the moment, it's a bit predictable when someone is about to unleash a mega.
I do also want to point out that the new megas could depend on what types are needed. Ice and Normal only have one each while psychic has seven according the bulbapedia. Also the only Pokemon to have dual megas are from gen 1... So they could change things up based on these facts.