I don't really know, but reading the thread it seems that both sides had an opt-out option in the current CBA. This basically means that either side could have terminated the current CBA early by opting-out. Then the CBA is terminated early and negotiations begin, which would proably mean a lock-out in 2020. The players could still opt-out now, which would terminate the current CBA in 2020.
I would be very surprised if the players opt-out now, which means the current CBA is still in place until it expires in 2022.
Hopefully, a new CBA, or an extension, can be negotiated well in advance of the 2022 expiration date.