They just cast Ruby Rose's replacement for Batwoman. They're not canceling it. 

I think it has to do with Brandon Routh leaving the Arrowverse, but Ray keeps getting overlooked lately. He should have been at Oliver’s funeral. And he definitely deserved to be invited to the Justice League. He’s been active as a superhero just as long as Kara and longer then Batwoman. He’s significantly smarter…

Well they didn't have Pete for the first two episodes, and I've heard McKinnon is going to miss some episodes. 

I doubt that anyone from Marvel or Disney said that, but her agent could have said it.

What does Manfred have against the LOOGY? I can’t see a single benefit to the three batter rule, but it ruins the role of the LOOGY who’s sole job is to get out left handed batters.