They have a second MKE-LAS trip loaded starting 11/17 and running through 12/21. This flight leaves MKE at 1:05pm Monday through Saturday, except some Thursdays it operates at 8:45am and other Thurdsdays it does not operate.

What is odd is that at this point, there is not a return flight nor does there appear to be any other schedule addition or adjustment in MKE to make that work out. The added flight is an Airbus, and for it to leave Milwaukee at 1:05pm (most days) means the aircraft has to arrive MKE by no later than about 12:25pm. That's too early for this to be the afternoon leg of something like MKE-CUN-MKE, MKE-Florida-MKE, MKE-LAS/PHX-MKE, etc.

Clearly some other changes will need to happen to the schedule. Obviously I'm curious to see what other changes are being made to make this work.

As for your specific travel, sit tight and see if the upcoming schedule changes affect your days. If your existing flight operates but there is another one, you would likely be required to pay a $50 change fee plus or minus the fare difference, if any.