This is my map of wannebe Poland.
Red - very, very limited dreams
Orange - limited dreams
Light Orange - small-scale dreams
Blue - what Poland could do without after ww2 imo
eastern Luzyce region - it was polish-controlled for only brief moments, and was given to Poland "by the way" of returning Silesia.
Klodzko (Glatz) valley - it was originally czech, polish-controlled for only brief time, and was given to Poland only because Frederic II captured it with Silesia. It could be exchanged for Zaolzie, as Poland proposed after ww2
Red:
- Arkona (a slavic old pagan temple on Ruegen island), Germany
- Lebus/Lubusz (once an important polish city, now just across border) Germany
- Zaolzie region (part of Cieszyn Silesia that was majorly polish after ww1, but was captured by Tchechoslovakia due to its industrial importance, Czech Rp - in fact, autonomy with polish as compulsory language would be enough)
- Sucha Gora, Glodowka and Jaworzyna villages in Slovakia
- Zolkiew city, due to the grave of hetman Zolkiewski, a polish national hero, Ukraine, just across the border - perhaps also nearby Grodek Jagiellonski, where one of our kings has died.
- Belz, an old historical city, not far from border, in the 50s coal was discovered there, and USSR forced Poland to exchange it for worthless mountains; Ukraine
- Wolczyn city, birthplace and burial place of one of our kings, just across the border
- polish-speaking territories in Lithuania and Belarus (enough would be to give it all to Lithuania and make polish compulsory language)
ORANGE
western part of western Pomerania and western part of Lebus Land
It will never happen, but I wouldn't mind if they were given to Poland after ww2
entire Cieszyn duchy in Czech Republic, Czadca, Spisz and Orawa regions in Slovakia. While polish-speaking, these regions had hazy or no polish conscience. I'd give them to Poland after ww1, but now - not.
Lwow and surrounding lands in Ukraine - I'd give them to Poland after ww2 for sure, now not, though it's a shame, because Lwow is a very nice city, and it had only a small ukrainian minority before ww2
Bigger parts of Belarus - again, after ww2 I'd let them with Poland, now not, because not many Poles are left there.
Kaliningrad (Krolewiec) region - again, after ww2 I'd give it to Poland, now it's settled with Russians, so nothing can be changed.
LIGHT ORANGE
Galicja region + Kamieniec Podolski in Ukraine - northern and eastern parts of it had polish majority. After ww2 - perhaps, but there would be problem with southern, almost clearly ukrainian, part. Now not.
entire czech Silesia - people there speak a dialect that is in between polish and czech / moravian. Originally these lands were polish, but in XIX and XX century they considered themselves Czechs, not Poles, so, sadly, no chance.