Assuming your future wife has a passport, she might be able strategically to change the driver's license early and the passport (or other government ID) much later so as to be able to travel on tickets in either last name during the transition period.

If she doesn't have a passport, she could apply for one immediately in the new name and ask that it be expedited, while postponing changing the name (and address?) on her driver's license as late as legally possible.

An easy way to avoid the hassle would be for your wife to continue to use her own (maiden) name indefinitely for legal matters, perhaps using her married name socially.