theres is no killer app we will get the usual but at a damn cheap price im talking about a 99$ console

Or that Pokemon MMORPG everyones been asking for U:

Nintendo all -star RPG. Where all nintendo franchises merge into one epic huge game. with RPG merged with zelda/mario style 3D gameplay. All Nintendo villains are doing some sort of evil plan, but its actualyl a genius plan with amazing story. and all the heroes must come together and defeat them. and final boss will be UBER MEGA SUPER UNIVERSE BOWSER, who will be the most powerfull boss ever made and most epic music will play when you fight him, and will be the best boss battle ever created.

I have a theory about those scroll wheel "bumpers". We can't really tell from the patent, but what if those are to "add" more buttons to the system? What if you can press a quick switch button on the back, scroll to a button letter, and then lock that button in place and assign an action to it? This could offer 4 or 5 buttons PER bumper, or offer new playstyle experiences via "free wheeling" where the bumper(s) are not locked in place, but are used for scrolling, zooming, etc.
The new killer app could be something to help show off this new control style, where maybe you're looking through a scope to either search for things or shoot things, and you use the wheels for precision aim. You get on a certain aiming plane, and then you scroll a click or two with the left bumper to zoom in, and scroll a click or two with the right bumper to slowly move left or right. Say a stealth/spy game where you have to gather intel, or take out a target using targeting equipment or a scope or something. Another application this could have is quick adjustments or item switching in games, which they could really use with a huge variety of titles. If it sticks, I'm going to say that Zelda will use it for a few puzzles as well where you have to use the scrolling wheels to balance left and right across a log or rope, or where maybe you slide blocks or something into a panel on the left and are trying to match patterns doing the same with the right.
There are a lot of applications this COULD have, and the locking button thing would obviously be self-explanatory, but regardless, I think that Nintendo will do something completely outside of what I just thought of. These would be applications for things that I can think of, not the geniuses at Nintendo, I'm sure they have much bigger and better plans.

I'm gonna go crazy and predict some sort of Mario......racer maybe.

With Karts?

Could be karts, yes...

While I think it can be massively multiplayer, I don't think it can be that type of hardcore genre. That type of game just doesn't have the type of wide appeal necessary to be killer app successful. Again, I think it will be super casual. Not Wii Sports casual, but maybe Nintendogs or Animal Crossing casual. There's depth, and it's feature rich, but it isn't this hardcore game with complex systems like a typical MMO has.

I think Splatoon 2 would sell well, but I 100% don't think that a shooter of any kind is what will be the killer app. If you don't like shooters, or if you don't care for Splatoon's brand of gameplay, you won't buy an NX for it, and that's a lot of people. Splatoon might be good, but it doesn't have nearly the kind of killer app potential that games like Nintendogs or Brain Age had. The appeal is just not wide enough.

While I think Pokemon could be a killer app for the NX, I just don't think it will be a launch game, to I'm not even considering it.

I think you're on the right track, but I think it'll be a completely new IP. I think they'll want to attatch the NX hardware brand to that IP in a similar fashion to how they did the same with Wii Sports and the Wii or Nintendogs/Brain Age and the DS.