There's definitely something going on with the Super Monkey Ball series. First we had the raiting for Tabegoro! Super Monkey Ball in Japan, and then SEGA re-upped the raiting for Super Monkey Ball: Banana Blitz. Now another Super Monkey Ball rating has popped up, and this time it's in Taiwan.
The latest rating is for Super Monkey Ball: Now Good Taste! (Google translation). That rough translation seems to line up with the Tabegoro! Super Monkey Ball rating that surfaced weeks ago, as that translates into “ripe,” “in season,” or “good to eat.”
I'd say that's certainly enough to link the two titles.
What other information comes from the rating? We get the tiny piece of artwork you see directly above, and the rating itself confirms a Switch version. I'd say it's a done deal, then! Now we wait for SEGA to make the official announcement.