So here was be being skeptical it was Arc when all the signs pointed to it being Arc.......
Well Futurism Boyz...are indeed Arc
The line up hasn't changed but their names have
Vocal - CO-
Guitar - ユキヒロ
Bass - BB
Drums & Prog. - 俊 (Shun kept his the same)
They also have their new Ameba!
Edit with their Twitter!