[MaskedRiderAsakura]

Yeah it seems like pretty clear cut foreshadowing to his role as Kamen Rider Thouser.

I'm guessing all that stuff about Aruto being a clone and Horobi being the identity of Thouser is a fake then. Which I thought it was odd that he'd assume a whole new Rider identity rather than simply getting a new form, especially when his current Rider form in this case is literally named after him.

I mean, it could still be true and this could be an intentional misdirect, but I doubt it.