I got tricked. The SEGA channel just reposted the same damn video from April. The only difference is pre-ordering the game now gets you 3 Days early access
Both Sega's Asia website and Steam recently released new details that don't seem to have been picked up elsewhere. They include overviews of the story and the game's first two stages, along with new character art and descriptions. A notable returning character is Naoko, Musashi's fiancé (now wife!) who is kidnapped in the events leading up to The Revenge of Shinobi. This seems to be our first official confirmation that the good ending in which Musashi rescues her during the final boss fight is canon.
A new behind-the-scenes video features some commentary from Lizardcube along with a few snippets of new footage, including what appears to be cutscenes with spoken dialogue. There's a combo counter prominently displayed in the gameplay footage too — wondering if they'll have a system where your power increases as you chain hits together a la the PS2 entries (looks like stealth-dash is making a return, so that might not be too far-fetched).