A few major things have been done in this change here

CUTS:
-Emrakul, along with the ninjitsu way to cast it have been cut. I love big splashy plays that can be made like this, but I think I only need one of them in the cube. Stuffy doll stays.
-Complicated rares, like Sidisi, Brood Tyrant and Professional Face-Breaker are a dime a dozen in this cube. Cutting out a few will allow people to focus more on some of the other cool stuff
-All dual faced cards have been cut! Flipping cards around is not fun and knowing that all of the text is right in front of you is a nice feeling. I will miss the cards with simple backs like Kazuul's Fury and Twinblade Geist but as of right now I believe its worth it

ADDS:
-Simple, toolbox artifacts! Pyrite Spellbomb and Renegade Map are nothing to write home about, but go in a variety of decks which is a big plus
-Concise, cheap cards (counting Krosan Tusker as 3 mana). Adding more cards that go in a variety of decks like Cankerbloom and Mayhem Patrol I think is going to play out really well.