In-progress repairs to the damaged cabs of monorails pink and purple will restore the system to twelve trains.
True however that is still quite a way from being complete, the trains haven't even got the front cabs on them and quite a few parts still need replaced that have been used for other repairs.
The tugs are slow, getting them onto any line from TTC would be the quickest way to get them around.
Having one at Epcot station wouldn't help MK express or resort.
Not really true, Since you would not have to de-energize the express beam to bring the work tractor out. If you put the mini spur as I called it where you park the work tractor somewhere between pylons 225 and say 365 there would be no need even think about having to move any other trains backwards.
Say Coral Breaks down and needs towed around 185 right before Epcot, you have Yellow at 45 and Blue at 374, all you would do is bring Blue into TTC, Move Yellow out to say about 105 and once Blue has unloaded move it out to 55 or somewhere which would leave Coral a straight shot back to TTC and a clear path on to the express beam. Once The train got into the station all you would need to do is drop power to the express beam to about 62 and then take it out the switch and back off the express line to shop. Realistically you could have it moved and out of the way with 20 - 30 minutes downtime on the express beam so for that time people are just directed to take the resort trains.
The real problem is the resort beam, If something breaks down on it things become a real pain. You simply cant divert resort guests to the express beam since it needs to go out of service for the train to be taken to shop. Watercraft and Buses can pickup the slack however its not really good show and can upset a lot of people.
In My opinion Disney should have raised the platform at the Polynesian and put in a service elevator and also put in an Elevator at the Grand Floridian so in the case the resort line is down the express beam could be used as a resort beam. The contemporary is already setup this way and can easily be used for loading and unloading in this manor.
In the end I believe the whole thing was designed poorly, right from the start there should have been a way to bring a resort train out/off without having to go through the express beam. This could easily have been done during the planing phases of the system but wasn't.