I dunno; I think it'll be the main point of contention in the winner's foreign policy for the foreseeable future. Problem with the economy in 10 years? It's Germany's fault for letting Poland/Finland leave!
Honestly, it wouldn't surprise me if either/both the PM and Emperor have written off those areas and are just claiming to have irredentist plans for the future to appease the rest of the leadership.
Vaguely relevant:
https://www.washingtonpost.com/blogs/compost/wp/2015/06/23/every-state-flag-is-wrong-and-here-is-why/?utm_term=.0874290c8804
Someone could use some of these as inspiration, and I found several of them quite funny.