[Not surprising, although apparently the Jedi has been planning this for a while if he contacted Ren earlier this month. It's clear that he wants to gather everyone from their galaxy in one place, most likely to discuss certain topics. He can't think of any other reason why he would be invited.]

He wants to bring all of us together in one area. If he wanted to learn more about the future, he could just ask each person individually. Instead, he's going through this difficulty.