The hooded figure isn’t necessarily the forth Metsubojinrai.net member.

At least, I think it isn't. There could be more than one. I just think Fuwa would fit and it would actually be kind of a cool twist for the character.

Although it's probably nowhere near as interesting as either of our suggestions, it could be just that one HumaGear featured in the Thouser special.

If previous episodes didn't show it already, Gai has got to be the very first Rider whom I actively root for him to die brutally, perhaps even more brutally than Sid being crushed by walls.

He's such an asshole, but the kind of lovable asshole that you just want to see him get turned into a baby and everyone will make the baby cry.