If they do give Charizard and Gyarados MegaEvolutions think about the possible type changes... ;)
Anyway, one of the things they've said is that not all Pokemon will be able to MegaEvolve.
Like all the vague statements they've made so far this is also open to interpretation.
We've generally taken it to mean that certain final stage Pokemon will not MegaEvolve.
However it seems clear that ONLY final stage Pokemon can MegaEvolve which is sufficient to satisfy the statement that all Pokemon do not.
(Though this leads one to ask whether 1-stage Pokemon that have gained MegaEvolutions, such as Absol or Mawile, have had their evolutionary lines sealed. Quite probably.)
Now, one of the other things I've seen on the official site is that there will be 'many' MegaStones to find around the Kalos region.
Just randomly I thought to myself that ~100 would be many; that's about the number of TMs + HMs you find during the most recent games.
Then I checked just how many Pokemon exist which do not evolve any further. According to Bulbapedia 102 (54 normal, 48 Legendary) of the 649 as of Gen V do not evolve.
http://bulbapedia.bulbagarden.net/wiki/List_of_Pokémon_by_evolution_family (see Trivia at bottom)
That means that they are either 1-stage or the final stage of a multi-stage line.
The number 102 is a much more manageable number that the 649 we usually think of.
I don't know how many will be added for Gen VI but we can compare to Gen V which was a totally original generation.
Between Gen IV and Gen V there were 12 additional ordinary terminal Pokemon and 13 additional legendaries for 25 total.
So I'll just guestimate and say that there will be ~130 when Gen VI is accounted for (though it may be a smaller generation).
It's entirely feasible for GF to design ~130 MegaEvolutions of existing Pokemon for the XY games.
It's probably a heck of a lot easier than coming up with the unique evolutionary lines and legendaries.
These megas are supposed to be recognizable as Mawile, Absol, Ampharos etc. just looking more powerful.
So it's a matter of tweaking an existing design rather than coming up with something completely new.
As for the MegaStones, the number of stones found in the games might be less because we know some will be distributed exclusively with event Pokemon.
Anyway, just throwing it out there as a possibility that the opposite of eviolite exists for every final stage form just as eviolite applies to every pre-evo.
pokemonxy.com said:
In the Pokémon series up until now, there has been a limit on how many times each Pokémon could evolve. However, Mega Evolution is a different kind of Evolution, one that surpasses that limit.