You are at the start of new period, there is no way to have reliable number now. I own nextdifficulty.com so I can only tell you that conservative estimate is saying +10%, which means last 1500 blocks have been found so fast that if nothing changes the difficulty will have to grow by 10%. However I expect the pace of finding blocks will soon slow down.
Thanks for the answer .
Talking about slowing down , I also noticed antpool time between blocks is getting longer . I wonder if it's correlated . On the S5 it's killing profit . I wonder if it's related .
PS : a suggestion for your website . At the bottom of it, you could add a table with the history of the previous : effective difficulty jumps ,your prediction and the prediction of others .