I don't know how this passed by, but there are very important developments from November. Apparently Shahba, Mutasim and the Levant Front announced a new grouping within the SNA called "Unified Force".
This is a force very close to HTS. According to sources it was the Levant Front who let HTS pass trough Olive Branch and arrest Zakkour in Azez. Now we are getting rumors that the Levant Front are preparing to hand over all the force they have in the Turkish controlled areas to HTS. After today's meeting of the leader of the Levant front with HTS representatives in Bab Al Hawa reportedly 3 HTS groups gathered forces close to the border so the border crossings were closed again.
I think we see the last moments of the 3rd Corps of the SNA as we know it.
The statement regarding the forming of the Unified Force in Arabic (basically says what we say above).