I'm not overly surprised DC opted to cancel it, tbh. Xombi, much like REBELS, is/was a great all-around read, but it just didn't bring in the sales needed to continue its existence.
However, I do find it absolutely hilarious that they are canceling this book, but are still going to shove THUNDER Agents down our throats... As if THAT has been some smash hit. 🙄