If it were me and I wanted out I would contact the other district and tell them you have an attorney and will be working to get out of your current contract because you submitted everything by the deadline. If they say they have moved on then you have some decisions. If they say the position is yours pending court battle then you fight.
If they have moved on or you lost the court case you have some decisions. As much as I say do the bare minimum that's not in my DNA and the kids in the classroom deserve better. It isn't their fault the adult in the room, (super), doesn't want to be an adult. So, if you can suck it up then give it your all for one more year and submit your resignation letter today with the last day of school being the termination date and then let next year be what it is. If you can't suck it up then I would simply resign. Plenty of places hiring right now and the super can have the pleasure of finding a new candidate, (which I am sure they will because we are all expendable and replaceable), but you will have the pleasure of walking away from said super.