Or maybe they're choosing to let the Gokaiger movie focus on the Gokaigers?
I know, it's a radical concept that the Gokaiger movie isn't just 100 former Sentai actors waving to the screen for an hour, but just hear me out.

Honestly, it's got some very fun cameos to begin with. Wouldn't mind seeing like, Yellow Lion and TimeGreen show up for a second but. It's fine as is.

Granted I may be slightly biased, as I'm just very happy that with both Kiramai Silver's direct return, plus two Toqger actors; my three favourite Sentai are in the same place! Like this is a bit of a dream alongside Zenkaiger

So you must live next door to either Toei Studios or something. :lolol

No, I'm not! I'm not in Japan, by the way.
Well, there are two Silver Sentai Male Heroes: Gai Ikari/GokaiSilver of the Heisei Era and one of his Juniors Takamichi Crystalia/KiramaiSilver of the Reiwa Era. You'd think Junya Ikeda would meet his junior actor Kouhei Shouji in person despite COVID-19 Pandemic? Junya will be 29 years old on October 27 while Kouhei will be 22 years old on October 28. That means Junya is 7 years older than Kouhei, right?

What makes you think they won't? Are they not filming together? Or at least in the same studio to meet up?

Look, can you knock this stuff off about baseless stuff you don't have any knowledge on. I'll say this right now and not again, The amount of guests have nothing to do with COVID. There's a thing called, oh I don't know, a budget and wait hold on, something called hmmm...a schedule, plus maybe they don't feel like making it a guest fest. Look end this whole "guests affected by COVID or why Zenkaiger doesn't have guests also or something about Kiramager for hundredth time. Not every anniversary show has to have lots of guest stars. Gokaiger having so many guests only happened because of the 2011 earthquakes and tsunami at the time and was done to uplift kids during something so tragic, It's never going to happen again. Homages and call backs are just as effective.
KNOCK. IT. OFF.

Oh, alright. My bad. Anyways, I'm still waiting for the return of Gokaioh and Gozyujin plus other Sentai mechas that would possibly combined with Gokaioh.

Hate to burst your bubble, but that's probably not gonna happen either. Pretty much all the 10 years later movies don't have the mecha suits since after their Vs movie, they get pretty much decommissioned since the suits don't last, which is why GokaiOh didn't appear in that Strongest Super Battle mini series. They could bring them back, but they'd have to be remade or it'll be CG. A lot of the old mechas suits seen in Zenkaiger were remade from the ground up, which wasn't cheap.
The auxiliary mechas are a definite no go since those parts are not important to keep around after the show, If they do, It'll be CG.

Hope and pray there's new scans of additional Ranger Keys and their Gokai Changes from various reliable sources that'll pop up here. I just saw some of them on Twitter right now. I saw Zyuohger, KyuRanger, LupinRanger, PatRanger, Ryusoulger and Kiramager Ranger Key Sets. Wish there's website links somewhere.

Off-topic but…
 

Anyone else think this looks way better than the bulky Original. I’m pretty impressed with it regardless.