Well, if it takes place on Mira. Presumably plenty of the environments have already been completed in XCX. This would probably take place a bit further off, once they start colonizing outside of New LA.

Shulk's VA probably means NOE are localizing like they did the first game, X was done by NOA.

Clothing and architecture seem reminiscent of Homs culture, not NLA.

I have very High hopes for ARMS.

So I am going to go and count that as a major title right now.
If only personally.

Weren't ARMS and 1 2 Switch the equivalent of Nintendoland, and Wii Sports? Or is ARMS somehow a legit game, and not a glorified tech demo. Asking for real because I'm too lazy to watch a five minute demo of the game. 

1,2, Switch is more your Wii Sports.  It's a tech demo game you goof off with with some friends.

Arms is intended to be more substantial as a game with more tactics to the fights and more nuanced controls and actual personality and production value.  In the demo it certainly seemed more tactical and substantial than any Wii Sports game.  Also, ARMS has a traditional control option so the motion controls are optional.  

How much substance it will have is in question.  Personally, I am hoping for a healthy roster and a zany singleplayer.  

If Nintendo is able to push XC2 this year, I'll be satisfied with the Switch.

Yea, ARMS looks to be the next Splatoon; Perhaps Nintendo gaining a large e-sports presence could be done with the Switch.