Sun and Moon did some pretty heavy damage to my investment in the series after it was a bit shaky to begin with. The trailer did not leave me feeling impressed. I'd almost assuredly be leaning toward "no" if it wasn't for this being the first main game on a home console.
I just see Pikachu these days and I don't see my little yellow friend anymore, but yet another corporate mouse mascot trying to sell me a run of the mil cookie cutter product that will be a resounding success with or without my money.