My lifelong dream
Austriae
Est
Imperare
Orbi
Universo
Make all the jokes you want about the “ramshackle empire” but it worked better than the EU.
100 years without legitimist monarchy is enough. Lots of Hapsburgs still around, a loose confederation of the former lands could work better than the EU.
Actually, a loose confederation of bakeries and cafes could work better than the EU.