The 73Ss will be very very welcome back into the mainline fleet. Everyday you can see CR7s and AT7s flying at capacity with no suitable replacement; M88 you are looking at nearly doubling capacity.
Starting in Feb, TOL is looking at going to 9 daily flights with a new FRJ being added in at 10:00am...with an AT7 leaving at 10:45am. I would assume this would be an instance where the 737 would come in and replace the AT7 and FRJ flights (of course the 9 flights to CVG alone a day is nice). I would also expect some baiting by TOL - DL will get a new lower level boarding bridge for the RJs and a new jet bridge will be going in at the upper level gate right next to theirs. Now to figure out how they plan on hooking the lower level bridge up to a FRJ.