Seems like they are getting rid of priority on summoning.

My thoughts? Not much, makes some cards like Book of Moon limited reasonable, and when I started to learn the rules I thought it was stupid anyway.

Huge bummer, always loved it how the mechanic affected the game!
Hope it'll stay in OCG but it does explain a lot.
Priority is getting removed for the sake of the game so it won't get even more broken Decks.
Still I don't like the idea!