Someone who claims to have actually seen the footage mentioned a few things from what was shown.
he walked around
fought enemies
i can describe a giant mindflayer type enemy
a character placing a shining magic sword into a pedestal at the base of a statue
a huge pyromancy fireball
shotguns
there was text "This is a nightmare."
fought enemies
i can describe a giant mindflayer type enemy
a character placing a shining magic sword into a pedestal at the base of a statue
a huge pyromancy fireball
shotguns
there was text "This is a nightmare."
Now, these images and that description both apparently come from 4chan (via NeoGAF), so the validity of anything seen or read about this supposed game is still very much a rumor.
However, it should be interesting to note that a Sony employee that regularly posts on NeoGAF has been teasing something about a "Beast" quite a bit in the past few months. It's just that nobody has really picked up on his hints until now.
Naturally, you should take everything with a grain of salt. Sure, it could be a new game from From Software. Sure, it could be a PlayStation 4 exclusive. Sure, it may have shotguns. Or that could all be a part of a really good hoax.
Even if it's not Demon's Souls 2 and ends up being something new like "Beast Souls", it'll still probably be PS4 exclusive due to the hand SCE Japan Studio has in this. I could be wrong though but I simply wouldn't count on it being multiplatform.