And Russians suddenly breached the front. South of Bakhmut, within that triangle towards Kostiantynovka. It could be start of something, if they can push more forces in there, widen the breach, and move behind of... nothing really. And I expect more fortifications all around. Basically it's a pocket. And those forces are probably in grave danger now, they can be hit from Zalizne, Kostiantyivka, Chasiv Yar, and Bakhmut.
If they can't trigger a larger scale withdrawal of the Ukrainian forces, it seems kinda useless. There is no direction which they could try to connect. Maybe they could threaten the troops defending Klischivka to the east (just south of Bakhmut), and make them retreat, then they could solidify the gains.