Is Shinobi 3DS Bound?

If this trailer is legit, Sega's ninja series Shinobi could be heading to the Nintendo 3DS. If it's not, then it won't.

In 1987, the first Shinobi title was released in arcades and later on the Sega Master System. It's been a few years since Sega has released a new Shinobi, so the series is due—overdue, even.