1. riddly
sakuri is eather trolling the people who want him by giving them hidden hope or is trolling those who think hes gone and going to throw in some other metroid boss as the hazard.
2. other M/custom movesets.
this is great. this to me sounds like a answer to other M, people no longer need to mod the game to make it how they want it. also expect a premade tournament move sets to be released.
3. online
i did not know there was a wii/wiiU Ethernet port adapter. A hardcore competitive and fun mode. Most importantly, acknowledgment that effort is going into the online and competitive aspects of the game.
4. littlemac
i believe hes going to be a noob troll character. great for raping worse players, but once at a even skill level, sucks.
5. no double charaters.
No switching. definitely for it, especially if the morphing characters arn't going to be overall weaker because of it.
6. perma final destination
competitive acceptance. also expect this as a excuse to make alot more creative/non standard maps.
7. charzard/ frog ninja guy.
why not bring back all 3 starts as separate pokemon. also i never even heard of the frog ninja pokemon, why was he picked over other pokemon or mew2
8. balance
it looks like most characters are being pushed into A/B tier compared to brawls tier list. This is just speculation but weak sub B tier characters got noticeable buffs while some top tier took a nerf.
If I had to ask why Greninja
1) He's the most popular newest gen Pokemon starter (at least his final form). They probably wanted to add more pokemon characters but not just go with gen 1 again and again. So they took the most popular first gen starter and the most popular newest starter.
2) The yin/yang aspect with Charizard. Charizard is big beefy dragon with fire breath. Greninja is a slick water shuriken throwing ninja. They're polar opposites in terms of style. I'm assuming Charizard will be a heavy with more aerial capabilities.
3) He's a ninja/humanoid. He's bi-pedal and a lot of his attacks/movepool would make for a good fighting game character.