>>and to my knowledge none of the neighbors wants to join that territory
Well, let me expand that knowledge then - Poland would love to integrate that bit of land, because currently the fact that the only entrance to the Polish port of Elbląg is controlled by Russia is a major ballache that stops the development of the region, enough so that the Polish government has agreed to spend billions of Polish zlotys to dig a canal that will allow ships to skip going through Russian controlled waters.
Poland has not expressed any wish to integrate that, nor any other territories. I can imagine it getting separated from Russia and even joining the EU at some point, but only as a sovereign entity.
Well, let me expand that knowledge then - Poland would love to integrate that bit of land, because currently the fact that the only entrance to the Polish port of Elbląg is controlled by Russia is a major ballache that stops the development of the region, enough so that the Polish government has agreed to spend billions of Polish zlotys to dig a canal that will allow ships to skip going through Russian controlled waters.
https://www.google.pl/maps/@54.4002206,19.5500717,10.75z