Not sure if anyone has already done something like this on this thread but here's my theories.
Mewtwo does have a good chance of returning for several reasons:
1. The roster is locked before development. That does sound like a bad thing, but a month after E3 2013, Mewtwo got another film and the first showing of it's Mega Evo. It was a sign of promotion for XY. Surely the character choosers might have noticed Mewtwo's returning popularity. If they managed to score with Greninja's popularity, they can do it with Mewtwo.
2. Mewtwo is NOT among the Poke Ball summons as of yet. Before I saw the Invitational and Treehouse at E3, I had heavy hopes that Genesect, which Mewtwo could compete with for a character slot, could make it in. But alas, Genesect is a Poke Ball summon, allowing further hopes for Mewtwo to return if Jigglypuff is booted out lol.(Jigglypuff fans please don't hate me
)
3. Mewtwo having 2(lol) Mega Evos could allow for a minor degree of customization, which is something U/3DS is promoting heavily.
4. More of a mythology gag, but significant. Brawl had a total of 6 Pokémon reps. How many Pokémon can you carry on a team? 6.
How many reps are in U/3DS? (Pikachu, Charizard, Lucario, Greninja) 4. Room for 2 more. For simplicity's sake, it's safe to assume Jigglypuff and Mewtwo could return, because other theorized competitors are either too obscure or not popular enough for Smash.
5. Sakurai already trolled us with Mewtwo during Greninja's reveal. Who's to say it isn't foreshadowing?
So what do you all think?
The "Mewtwo in Smash Run as a boss" comments are, IMO, some of the most illogical theories I've ever seen. No problem with speculation, but:
1. Mewtwo in Smash Run, a 3DS only mode, would mean Mewtwo is "3DS exclusive". Cue Wii U loyalists raging.
2. "We made a model, gave him attacks, even gave him a VA, but not playable." is what that specific theory is trying to tell you. Which is unfair.
3. Mewtwo is FAR too popular ATM to be relegated to a boss. Huge promotion for XY? Check. Featured in Diancie and the Cocoon of Destruction? Check. Much more variety for a moveset nowadays? Check. No way something with that much hype behind it will be relegated to...this.
4. All the points I mentioned in my other post.
So yes, Mewtwo as a boss in Smash Run is total bogus as far as I'm concerned.
Fitting, because
youshouldalreadyknowthis you carry 6 Pokemon on an in game team. As I said before, Jigglypuff is most likely to return, and if no newcomer was locked in, the last rep will certainly be Mewtwo. Besides, the other theorized reps are highly unlikely:
Zoroark: Not popular enough. The marketing push in BW fell flatter than a pancake
and my puns suck
Genesect: Popular theory before being shown as a summon.
A Trainer/Champion: What's the point of having a trainer fight with just 1 Pokemon?