^^^Yeah, the multiverse bit at the end was

, but reading the TV Line recap they basically said that Oliver's sacrifice created a new multiverse where all the CW heroes ended up on Earth Prime and there where other earths created that had the different versions of the heroes the CW won't have access to or not really part of the Arrowverse like the upcoming Stargirl.
From a cameo perspective it was

seeing the movie version of the Flash, as I thought they had banged all those out in the first 3 parts.
I felt the 2nd episode was stronger than the 1st one. Seeing Beebo again

. The Anti-Monitor really did remind me of Apocalypse, not only with the costume but when he grew larger and they started fighting him. Agreed the demons were definitely on jobber status.
It was cool seeing Barry establish a Justice League at the end there, although it might be weird when they don't really call on each other for assistance. Like Jefferson could use their help in taking down the ASA/Markovian threat

, but I guess they sorta operate that way now and only come together when there is a major world ending threat.