Is accuracy going up or down?
Jagdtiger and Elefant have the same accuracy, but the Jagdtiger currently has 80 range, so it's slightly more accurate. If we'd copy Elefant values for 70 range its accuracy would technically go down a bit. That's why it might get slightly better accuracy.
If you are adjusting base stats but removing the engine upgrade(which everyone gets) what is the net improvement in mobility between an engine upgraded JT in live and the new JT Stats?
IIRC the engine upgrade only improves acceleration nowadays (which is a pathetic 0.5 unupgraded) so together with the other changes, the Jagdtiger will be much more mobile than it currently is. We aimed for about 80% of Elefant mobility.