Well i just check patreon in the comment section of there trailer, and fatal fire studios said this : It has been extended for an indefinite period of time and we have been checking everything (this happens when everything is done so quickly, we have to be more orderly in the future) in the next few hours when it is complete, I will announce that it is ready to be uploaded.
It look like the reason why it took so long is because they tested the new update to make sure there are no new bugs in them and will upload it soon so please everyone be patient.