I saw you have work in progress update for the Train Fuel Station mod, any way you can also add compat for Train Control Signals and Train Groups?
The main incompatability with Train Control Signals is that when that mod disables depot or fuel depot, it does it by adding a green skip signal to the station name in the train so that the station names dont match. Your mod need only ignore that spesific green arrow symbol, so that the station names also match when skipped, and also the copier / creation / decontruct of trains should also not include that green arrow symbol.
https://mods.factorio.com/mod/Train_Control_Signals
This mod groups trains together so that when you edit the schedule of one train, all of them get updated. It just needs the group to be copied / updated correctly with the copier / creation / decontruct functionality of your mod.
https://mods.factorio.com/mod/TrainGroups