Can I ask why? The 10.5 iPad Pro is current, i can't imagine too much different that will result in an updated iPad. Will they even update the IPP this year?
I think they will move to an X style redesign. I feel like the feature set between the low cost iPad and the Pro are a little too close right now. I also think Apple wants to move quickly to adapt a similar design language across their high end devices. For me, I look forward to no home button, less bezel, more powerful processor, Face ID, and maybe screen enhancements as well. I sell and upgrade yearly and it costs me about $200. I wouldn't be terribly disappointed though if they didn't release something new though as I really like my 10.5.