It doesn't support the Second generation Apple Pencil or USB-C. I've also noticed processing lag in some of the games I play on it.I guess this is confusing. What is it that your current iPad Pro can’t do now that it needs to do by a potential fall release? Even if your iPad Pro is four years old, what is exactly that you’re experiencing that you couldn’t wait six months to upgrade if a new Pro model launches Sept/Oct 2020? (i.e Performance issues/latest features, ect.)
I've also already been waiting since last fall. I only buy new devices right after new updates so I'm not getting the 2018 model at this point.