Speculations will be made, no matter the time. No one implied Stars would be coming out right after Sun & Moon, although it was a possibility if it was ever a thing, people just thought that'd be the next game they'd announce, taking years or not.
I'd honestly prefer a Diamond & Pearl remake, but not an Emerald or Platinum-like game for the Sun & Moon series. It seems we'll be getting the Black & White 2 equivalent for it...
I won't be complaining if it's like Black & White 2 though, those were quite different from the first games.