They still will need monsters after Grand Zi-O's debut, which is why I could see Another Decade being kept until after that, since they don't need to force it before that due to the Watch already being with Sogo. And an Another Decade is certainly happening at this point considering how every other Heisei Rider is getting an Another counterpart. Even Ryuki got one, and it didn't need one at all after Ryuga.

I doubted Another Decade but now we genuinely are getting tributes for everything, it seems more likely. Probably one of; the villain Sougo needs Grand to defeat, the final boss somehow (most likely one of the Time Jackers in that case), or perhaps an epilogue enemy.

I thought they were collecting the rest of the Ridewatches so they could match Oma-Zio's level and defeat him.

Anyone thought of Zi-O would end? Like Gokaiger maybe giving back all the Rangers’ powers. Maybe Sougo and the others will do the same... maybe keep some from those who feel don’t need them anymore - like the Blade riders.

I have a feeling the finale and the episodes leading up to it are gonna involve past riders' actors in a way similar to Decade's last stretch. As it's been mentioned here before; the customary farewell flowers have not been seen to be given to the actors of Build, Blade, Agito and a couple others -- I could very much see Sougo giving the riders their powers back after attaining Grand and then at least some of them joining him to directly fight the bigger threat.

Though I admit that last part specifically is just a super big hope dream scenario of mine. A crack team of Sento, Kazumi, Geiz and Shouichi taking on Oma Zi-O and/or Schwartz would be fucking incredible.

A forced taisen avengers crossover. People prefer multiverse of decade more and that's not much. Guests don't get flowers, right? I don't remember sentai rider alumni coming back in past years as themselves or other roles receiving them if they're not recurring in a sense of supporting cast. Gingaman rider must be connected ronschwartz. Forever movie is out. It's like a reimaging or zio plus some gaia movie and tiga movie vibe from what I heard. The raw and chinese subs are out. Very fast like anime jh dramax alike.
Kiva queen is kamen rider G heroine? 40

I wonder how they would get the time manipulated Riders their powers back.

Sento sulks and says he's Katsuragi for a good 20 minutes until Geiz just throws the Ridewatch at him and he turns into Build. End episode

Yeah I'd watch that

Though I agree with what you said earlier. The intro for the show has always teased that Sougo would team up with the previous 19 Riders to take down Oma, wouldn't surprise me if we got a few returning actors in there, esp the most recent ones.

Would suck majorly for Blade if that were the case, cause that would mean he'd be a Joker again. Guess it fits into the whole tragedy theme of Kamen Rider, as in order to save time and space, he'd have to become a monster again.

EDIT: Oh god I just realized. If Kenzaki was the only Undead left if he gets his powers back, he'd win the Battle Fight.