I regret Lwów wasn't left polish after ww2, but the case is definitely closed. Only 2% or so Poles live there, and Poles in Ukraine, apart from Zytomierz region, were exterminated by Ukrainians, resettled to Siberia and Kazakhstan, or moved to Silesia. Almost nothing remains. So it'd make no sense to change the border.
Grodno and Wilno are different cases, because they still have a large polish presence, and the rural areas around are still polish. But Wilno is too far away, and it's a capital of Lithuania etc, so all I'd hope for is an autonomy, or at least Lithuanians stoping attempts at "re-lithuanisation" of these Poles.
The same for Grodno, though it's the only city that could actually return to Poland. But I don't want to open any border questions in this part of Europe, so all I hope is national freedoms for polish population there.