Just waiting on the terminal strips to come from China so I can do a trial fit and insure the layout is good. When that happens, I'll order a batch of boards.
I did add a couple of options, might as well while it's still only on paper.
I expanded the ground center common to ground or power to the common of the #1 set of relay contacts. If you want to power something like an LED signal directly, you don't need any aux power, just use track power with a diode and resistor.
I also added an off-board expansion capability for the capacitor. This will allow you to extend the time the relay stays closed after the train leaves the insulated rail. I got to thinking that maybe someone would want a longer delay...
