Some of my recollections. Please correct whatever I missed.

1) now you can score both an upper and a lower skill shot as long as you hit the upper skill shot first.
2) ball save on left scoop
3) Slimer less important to start modes so that shot downplayed at beginning - for example, it you start a mode somehow else, he goes away
4) distinct start to Loopin Supers and to mass hysteria multiball - much better as you essentially qualify them at 60 or 100 ghosts, but they won’t start until whatever other mode is over so they become distinct events - this is way better. Same concept for PKE
5) every time you hit ghost target during mass hysteria multiball, the flippers switch between regular and backwards with clear sound effects
6) each of the modes is easier as you can hit ghost target to get credit for a shot as long as you’ve hit one shot before and as long as its not the last shot - therefore, you’ll climb the ladders much quicker so you’ll see more modes; also, you get credit for a mode even if it times out or you drain, so also much easier
7) new librarian mini mode that uses the librarian insert (that was never used before); qualify this with captive ball (as long as you’ve got at least one lit in librarian ladder) and in rotation with Scoleri brothers,etc, so will see them less
took Scoleri brothers out of pops so see them less
9) if get all of the mode ladders, you get to a We’re Ready to Believe You wizard mode that is different (and now seems someday achievable given above) - it is very cool and if you win it, you get to a final wizard mode (Are You a God)
10) much more clear use of left captive ball set to light super jackpot and playfield multipliers

All in all, looks great and made the game easier, which means we’ll see more if it and have more fun. I think it will also have less ridiculous score variation.