Not sure if anyone here has seen this version yet, just posted online today.
Looks like the Wesen blood is from Monroe. They put Adalinds hand on top of Nick's hand just in case... lol. She's probably immune now by Nick's blood.
Looks like Nick is checking out Monroe and Rosalee's body beside their car. The other body in the middle could be Trubel or Eve.
Oh and that song is kinda creepy lol, its awesome.