I think you might see an advance in the south from Marinka (Vugledar is on the left flank) and a drive across steppe to Pokrovske. In the North you may see a drive across the Oskil and the retaking of Liman the Izium. With that, the Donbass becomes indefensible from a logistics perspective because the supply lines are all accross Steppe. The Donbass is industrialized and full of roads, hills, gullies and wooded areas.
The Russians are unable to interdict Ukrainian supply lines on any sort of terrain, unless these are in close artillery range. The RuAF is unable to use manned aircraft over Ukrainian airspace due to the SAM threat. This has been the case since last March.