Denjiro isn't Scopper.
They've got a few key differences in design. Scopper's got a very sharp chin, which Denjiro lacks. His ponytail is a big bushy effort, not a thin one. Scopper has two long bangs that hang in front of his face, Denjiro doesn't.
Coupled with no axe- but a sword that looks to be Wado Ichimonji- and the fact that nothing about Scopper suggests he has anything to do with Wano, it's very, very unlikely the two are the same. Denjiro's either Koshiro or a relative of his.
Also quite happy that he's not Kyoshiro since a) lot of folk guessed that b) leaves Kyoshiro's motivations still murky and c) it can shut up all the "the anime OP confirms the two are the same!" people