what if ... you like the new dial better
Perhaps you should know that IF
Lange does offer a 're-dail' to current Dato owners, then they probably wont put a dial from a PT watch on a Gold one. So if you are currently lusting for a PT Dato then you MIGHT have Lange put the new dial on your watch but if you are interested in the RG Dato the story can be different depending on the availability of that possible new dial.
I hope the above makes sense?