If the war ends, Ukraine will join the Nato and earn support payments to rebuild its economy due to the fact, that the EU is depending on ukrainian goods such as wheat and oil.
Isnt NATO representatives already claimed that Ukraine is not ready for joining NATO, as Ukraine does not fully meet European standards yet? I am a bit far from Ukraine joining NATO discussion, but last thing I remembered, was there several months ago there was a meeting of NATO countries and it seems they are not waiting for Ukraine in their union. As to wheat and oil - does Ukraine support Europe that much, that Europe would give billions to rebuild destroyed economy? Europe is not short of wheat deliveries from Ukraine, but so far there is no such huge shortage and wheat crisis in Europe, that will make people crazy.