The Bahkmut effort is purely to draw Russian resources away. The Ukrainians know that Putin can’t afford to be seen to lose it after they spent an insane amounts of blood and treasure capturing it earlier this year so it’s a diversion he can’t ignore, i.e. the best kind.
The real focus remains Tokmak, which I’ve been banging on about in this thread for a good 9 months now but we do seem to be approaching an inflection point regarding Ukraine’s attempts to take out the rail junction there.
Take out Tokmak and it becomes much, much harder for Russia to hold Crimea, the recent strikes on Russian Naval and air defense assets there suggest that Ukraine is already preparing for that next phase.
Not to say that it is in any way assured that this will happen. The Russian defences North of Tokmak are some of the most formidable on the entire front, it’s going to be seriously grim work and my heart goes out to the brave men and women tasked with this.