Yeah, I guess it is pointless to include them as the "surprise" since this is released next August on home media, and by then Ryusouger would already be embedded as the sentai team for 2019.

August is weirdly late - we normally get Returns movies in June. I guess formula-wise, this is filling the position of the returns movie and the vs movie.

I'm sort of excited but with that many characters most of them are probably going to be out of focus.

I doubt we'll get a Ryuusouger cameo, except maybe if the script was initially written with the intention of releasing earlier. Part of me wants a Zyuohger cameo but that's unlikely.

So Kyuranger vs Zyuohger never happened in Japan, well South Korea is going to fix that.

https://powerrangers.wikia.com/wiki/...racter_Musical
https://vignette.wikia.nocookie.net/...20190115160721