Lessee... in the few screenshots of a swamp level, there were the hands that come up from the ground to grab you like in CV4 (or Rondo?).
The goblins throw little bombs like those bag-head guys in Bloodlines.
That sorta-kinda-Egyptian level with all the beam balancing is much like the aquatic ruins stages of Dracula's Curse and CV4, what with all the waterfalls.
One video mentioned that Frankenstein made the machine tower, so maybe the Creature is in after all? (They earlier denied the old Universal monster bosses like the Mummy, but maybe they changed their minds?)
Death (or Deaths) in one shot of what appears to be a violent storm on Mars. Maybe this game puts DooM in the canon?
Necromancer not only kinda looks like Death, but also like the Necromancer bosses in CotM and SNES Drac X. Maybe Death is his demon form since he's a Lord of Shadow?
Cornell has a hammer, like the Cyclops. Yeah.
Crystal subweapon sounds like it kinda functions like the Rosary in old games.
Colossi bosses sorta reminiscent of the large golems in Haunted Castle and other games?
Maybe-Dracula (that dark-haired guy) is seen wearing a mask and black robe in Kojima's trailer, almost exactly like Drac's form in Simon's Quest.