The Battle for Aleppo!

The Syrian Army's recapture of Aleppo is militarily not complicated. The Army knows it and the amalgam of militias fighting it know it to.
However, the Syrian government knows that the recapture (final battle) of Aleppo will be the severest blow to the US/Saudi/Turkish & Co. alliance.
IMO, the government will refrain from this move for the time being, even though it will continue it's recapture of the rest of Syria. Aleppo's final salvo is for another day and another stars realignment.
The government will paralyze the militias-amalgam, but will leave the coup de grace for another day, not too far in the future.

NOTICE, the Syrian Army's steady progress 

NOTICE, the atmospherics in the North with the Kurds & the 'amalgam-militias'. 

NOTICE, Bandar's emergency flight to Moscow.