[Matrixbeast]

Quote:

Originally Posted by henshinzero

As for Zero-One? Obvious 01, 02, Valkyrie & Thouser are the only surviving riders of that series and Vulcan is deceased along with MetsubouJinrai.

Fuwa's fate was left intentionally ambiguous. He was supposed to die, but they left out a definitive answer, so Vulcan could potentially return.
Not to mention, considering a big part of Zero-One's final stretch was that Humagear memories could be stored and recovered, MetsubouJinari could also return (I know they technically wouldn't have memory of their former lives, but considering Izu basically remembered everything despite having basically been factory reset by the end, I'm sure they don't care)