this is movie 3 in the Godzilla/King Kong universe for those who don't know. there is another one planned after this one about Godzilla and King Kong fighting
are we sure that the Kong: Skull Island is in the same universe as Godzilla (2014) and this? Because I dont think it is. I mean, I know they plan to bring in Kong for the next movie, but I dont think it has anything to do with Skull Island
there was a secret scene at the end of Skull Island's credits
it showed a government organization that tracks monsters and they showed ancient drawings of the monsters that are in King of the Monsters. Mothra and King Ghidoraa and the like. drawn like in cave paintings. and it was to connect the 2 movies and let us know it's in the same world and that they will collide.