That information isn’t known for smash.
The sites I read are leaning toward wii-u port.
Octopath isn’t really a big title though is it? Looks like a retro indie game square bought.
2018 is shaping up to be pretty disappointing
Smash will probably be new, but more in the sense that Splatoon 2 is technically a new game, even though it isn't massively different. I wouldn't' expect massive changes from Smash 4's formula.
Octopath is SE's idea, though it is developed by Acquire.
How so? Just because a game isn't big doesn't mean its not good. Also, we haven't hit E3 yet. There still big rumors of Pokemon hitting this year, Nintendo has apparently been pushing Game Freak to get it done. This year isn't going to have all the big games of last year, Nintendo stacked the 1st year of the system heavily. And we probably won't see significant, non-port, 3rd party support from the big folks until next year either. The Switch's success surprised everyone so companies are now scrambling to support it.