I hate to be that guy, but the major thing going against Snake is that his whole universe was cut on both games. For Snake to come back, they would have to reestablish his whole universe again, meaning putting MG music, trophies, on both versions, making a stage on both versions, making Gray Fox work on both versions, and then there's rebalancing Snake, creating his custom moves, and licensing. I don't Nintendo would be willing to go all through trouble just to bring one character who only got in as a favor in the first place and has barely any support from his parent company (Konami). Not saying it's impossible mind you because it's Sakurai and all, but I don't think Snake is anywhere near a high priority character.
Fair enough, I can understand where you're coming from.
they would have to reestablish his whole universe again
putting MG music, trophies, on both versions
MG music can be easily brought back from brawl and phantom pain,music isn't even the most difficult part.
Trophies may be a bit more harder, but they already have the models from brawl. They are not making each trophy from scratch except maybe snake's.
making a stage on both versions
Correct me if i'm wrong, but isn't the miiverse stage going to be free? They're putting hard work into making a miiverse stage for BOTH 3ds and Wii U for free, a brand NEW stage. How hard it would it be bring back shadow moses island, considering it's a brawl stage?
making Gray Fox work on both versions
We don't know if there will be assist trophy dlc, but it's just ONE assist trophy.
and then there's rebalancing Snake
They're going through the trouble of rebalancing mewtwo, and probably re-balance every other dlc character. What would be so hard about rebalancing snake? Nothing holding him back hardware wise like ice climbers either.
creating his custom moves
Again, they'll probably do this for every dlc character, don't see how this is against snake.
If they are going to go through licensing fees for trophies of rayman(might be dlc, who knows) and captain video, why not snake? It helps since konami/kojima is open to it. Something can be worked out if the other party expresses interest.
I don't Nintendo would be willing to go all through trouble just to bring one character who only got in as a favor in the first place
CHA-CHING my friend CHA-CHING
Metal Gear Solid is a iconic franchise and snake is a very popular character. It only helps that MGSV is coming out next year and snake dlc could ride of the hype of that game. Snake for sure would bring in money.
barely any support from his parent company (Konami)
(they have developed zero games for it since the Wii U came out
If Wii U games factored in, why doesn't activision have a rep? They've developed the most games for wii u, so by that logic they should have a rep.
Konami still supports the 3ds, they announced a game for 3ds at TGS 2014, so they have support for nintendo. Konami,2K,Capcom all don't support Vita, does that mean they have a bad relationship with sony? Lol no.
Have you also considered adding snake in smash again would help build relationships with konami? Doesn't Nintendo want to work with more 3rd party devs? Not adding snake doesn't help their relationship at all. Snake DLC can be viewed like hyrule warriors. It's a cross over game, nintendo let tecmo make it, and their relationship grows strong.