I'd thought about that myself (sans the Gold armour bit) and could definitely see that working. It would be even better if they tied it in with (my very wishful thinking here) a storyline about Gosei Green becoming Barizorg.

Wait, why can't robots have emotions?
Just look at Alpha.

Loving that idea. Yes Boss.

They can. It might just make working with source footage a bit easier I guess.

Had some thoughts now that we're a little closer. Some thoughts, and some questions.

RoboKnight is the first thought. He wasn't seen much in Gokaiger, in fact I'm pretty sure he was only seen in Mass War footage, whenever Gai became him, whenever Gai used the Gold Key, and that was about all. So if they do use him after the end of MF, it'd have to be almost entirely new footage. Another option, which I'm not sure how to feel about, is he becomes Human and becomes Megaforce Silver. And the final option would be he gets destroyed somehow. Luckily all of Gai's Gold Mode helmets are Sentai we've had in America. So that shouldn't be to much of a problem to do. Ironically one of the past sentai to give him the power of his Mech, and his Gold Mode, is Green Ranger :lol So that worked out nicely.
And with Erin Cahill saying that she would only have one scene.. I'm worried about something else too. Why do I think they're only asking some of these actors back for one mass morph scene? Which sounds cool, I know. But you're asking alot of someone. Fly to NZ, drop their lives for two days, and film one scene. Goooooood luck.

I'd still love to see Robo Knight turned in to Barizorg or whatever. That would make the Barizorg/Noah story, translated from Barizorg/Joe story, that much more meaningful.

And it'd actually hold some weight by involving 2 characters we already knew.

Have I mentioned the questions that will be raised by the Black to Green transition?

Pirates? Not a problem. Black to Green? Problem.

But they did it when MMPR transitioned to Zeo. If anything, that would be another similarity to bring up with the anniversary.

There's an option I never thought of. And I did absolutely love Barizog in Gokaiger. But if he doesn't say Yes Boss, atleast once? I'm done :lol

There's more of a problem than that. Look at the mannerisms. Emma can pull off Ahim, and Gia can be Luka, without an issue. Noah though acts nothing like Joe, and Jake is absolutely nothing like Doc. Troy and Marvelous.. that might be an issue to.

So whatever Gokauger stuff we see might be almost 100% new footage.

Troy is such a blank slate it's fine, since Marvelous was trying so hard to be "Cool" and "Stoic" his mannerisms were practically nonexistent (Marvelous would do a ranger's signature pose, but put no energy behind it).

As for Noah/Joe and Jake/Doc...Yeah, I dunno...

Yes, but they had the Zeo Crystal to explain that.
This is like if W got adapted and it went up to the Trigger Magnum and then cast aside Gaia Memories for Medals.

The fact that the Megaforce characters act nothing like the in-suit Gokaiger scenes will likely just be ignored.
Just look at how the White Ranger acted in his mecha in his first appearances of MMPR. That was obviously not supposed to be Tommy.