Suffering and high price paid by the Albanians for breathing freely in Kosovo is such that there is no possibility of going back to the previous situation. If Serbia keeps insisting on that, that will merely be a waste of time. Today in Kosovo there is no tendency to unite with Albania. That is a matter of the past, because it wasn't accomplished in time. The Albanians have become sufficiently smart to realize that the unification will actually happen, although it will not be formal.
Borders can survive even though the economic, cultural and other links become extremely tight.
If those links are not disturbed, then borders are not important and the need to modify them disappears. You say that borders are not important, and insist on independent Kosovo. If it weren't for this bloodshed, evil and war, we could have accepted formal links with Belgrade, but the Serb regime has destroyed all chances. You know that in 1988 Albanians accepted Yugoslavia under the condition that they were equal with others, that Kosovo became a republic. But the Serb regime rejected all that and thereby destroyed every possibility of life in a common state.