EA Logo should be there if they are publishing it, there is no EA logo, I found it very hard to believe that a company as big as EA would forget to put a sticker along with something that it is involved in.
This is the EA's official Crysis site: https://www.ea.com/games/crysis/crysis
There is no mention of Crysis Remastered on any EA site nor Origin.
Perhaps it could be a leak that caused Crytek to go out early without the proper reveal being finished as it didn't went according to plan?
So EA won't be the publisher for it. One can probably purchase it from Crytek shop or directly from Steam as any other Crytek self released and published game.