Oh! before people start whining about the perspective change; Neo Contra already did it first so contrary to what you may have read it's not new. If Rogue Corps had to absolutely be 3D, I think a twinstick shooter is the smartest idea.
Contra has historically been a scrolling platform run and gunner. It can be argued that to make it something else makes it no longer Contra. It is likely that if it does well, then the old form will never come back. I am personally in favor of any offshoots of older franchises to expand an IP, IF it also means the old form doesn't disappear completely.