In the post-credit scenes of Kong: Skull Island it shows some monsters. Who are these monsters and what powers do they have?
EDIT: These monsters are now shown in the final trailer of Godzilla: King of Monsters.
Based on this source, the monsters are:
Rodan. This big creature is loosely supposed to be a variation of Pteranodon, albeit larger and standing more upright. Rodan first appeared in 1956’s Rodan, a Toho film about a flying beast that can breathe poisonous gas from its mouth and has been slumbering beneath the mines of the earth for hundreds of millions of years until a nuclear blast wakes him. He flies, he bites, and he’s all around a tough customer.
Mothra is generally depicted as a force for good in Japanese films, first appearing in 1961’s Mothra. She hails from a magical Japanese island where she is worshipped by priestesses and is often accompanied by two fairies, twin young women, who speak on Mothra’s behalf. She’s also a giant moth with peacock markings. But that part’s pretty obvious…
This dude first appeared in 1964’s Ghidorah, the Three-Headed Monster. The creature has had multiple origins, including being an alien and a genetic freak from the future, but either way he is a three-headed dragon and he means business.
These guys are all part of the old Godzilla Showa-verse and basing on the premise of Godzilla: King of Monsters film, these monsters will be introduced in that movie as part of the MonsterVerse branding.