There have never been any cursor/arrow keys on the virtual iOS keyboards of any iDevices, but should have a delete key, though.
On the 12.9 inch iPad Pro, the Delete Key should be to the upper right keyboard area.
If you do not like the current iOS/iOS 11 keyboard layout, there a third party virtual software keyboards you can install instead.
If you want cursor keys and easier access to other symbol keys, as well
The one third party software keyboard app I use on all my iPads is called PadKeys.
PadKeys
https://padkeyskeyboard.com/
PadKeys Keyboard for iPad by Natural Designs Software, Inc.
https://itunes.apple.com/us/app/padkeys-keyboard-for-ipad/id975022995?mt=8
There are many other 3rd party virtual keyboard apps to choose from in the iOS App Store, but I think this one is one of the best for iPads.
Good Luck to You!