Below are the major carriers who aren't on board the ACCN bus and the status of their carriage contracts with Disney. Please correct me if I've got anything wrong:
DISH -- Their contract with Disney is already up. They must be very near agreement or Disney would have already pulled the plug.
Comcast -- Their contract with Disney runs until 11/2022. The say they're talking with Disney. We have no idea how serious the talks are.
ATT Uverse -- Signed a "long term deal" with Disney in 3/2018. We don't know how long it is but it won't be up anytime soon. They say they're talking with Disney but we have no idea how serious the talks are. There have been rumors of "binding arbitration" but these are just rumors. If it were already known for sure that Uverse was going to carry ACCN, wouldn't it be in the best interests of both ATT and Disney for Uverse to start carrying ACCN now while arbitration sorted out the exact price tag? Still, since it was already known in 3/18 that the ACCN was coming, I can imagine a provision in the carriage contract providing for arbitration on the ACCN bill.
Cox -- Also signed a "long term" deal with Disney in 3/2018. We don't know how long it is but it won't be up anytime soon. They say they're talking with Disney but we have no idea how serious the talks are. There have been no rumors about "binding arbitration" with Cox but if there's such a provision in the ATT Uverse contract, there might be one in the Cox contract which was signed at the same time.
Frontier -- I can't find anything about their carriage agreement with Disney. They have flatly announced they're not carrying ACCN. Of course, they could always change their minds.