Its very likely that russians will not be able to launch any major offensives during the winter, they seem to only focus on trying to defend their already occupied areas.
Defence line in Luhansk is clearly a part of that their new strategy.
Russian sources are reporting that AFU is completing preparations for a massive offensive in the #Zaporizhzhia sector.
If the offensive truly happened, it would propably look something like this. AFU's first & most important objective would be to cut the "land bridge" to #Crimea
If Ukraine attacks in two direction at the same time like on the map, the eastern side of the offensive would likely go to #Berdyansk or even #Mariupol
The main objective is still to reach the sea and cut the railroads and highways. #Crimea would then be cut from supplies
AFU would definitely go for #Melitopol because its an important logistics hub & has an airfield that russia uses in its operations. They would probably also go for #Enerdohar to take the NPP back.