[Kiwami]

They could obviously have SSSS. Dynazenon be set in the same computer world as SSSS. Gridman, but I think that would be kind of lame.

If anything I would expect that this time it's actually set in the real world and we will meet older versions of the OG Gridman cast.

Like, when Trigger first made their Gridman tribute short which kickstarted this whole thing it starred a redeemed Takeshi (the human bad guy from Gridman) in his adult years, and when the real world is attacked by giant monsters he transforms into Gridman Sigma to fight them.

Gridman Sigma is the younger brother of Gridman, and was featured in a novel, but the concept behind him came from an unused idea for Gridman's last batch of episodes were Takeshi would become an evil clone of Gridman, called "Kahn Knight" before being redeemed and adopting the alias of Grid Knight.

Now, Grid Knight we already got in anime form, but while he is an evil clone of Gridman (sort of), Takeshi is not involved.

So I kind of feel like that when this show progresses, both a Kahn Digifier / Alex Kerib villain might come forward and Takeshi will back up Dynazenon as Gridman Sigma.