I was just about to mention the weedle tweet and joke about it, but I completely forgot about last year's Pokemon Go tweet which was almost accurate in its Let's Go announcement date teasing. While it does seem a stretch, its Masuda as fuck to do something like this. None of his tweets felt particularly teaserish until this one. He blurs the bottom half for no reason, the thumbnail on Twitter is specifically the Candy portion, and he never really tweets Pokemon Go photos. I'm confident as hell we will get an announcement for the direct by next Friday, it just feels right.
Edit: Huh. Masuda has been going on a lot lately about the Weather as well. Could potentially mean the games are gonna be something Hot and Cold. Would make sense, falls into the Red/Blue motif most of the gens follow, but it does clash with gen 5 quite a bit. Perhaps then Summer/Winter? Would love it if Gen 8 is focused on seasons.