So, let's assume that, after winning the austro-prussian war or intervening in the franco-prussian war successfully, the Austrian Empire annexes the south german catholic states of Baden, Württemberg, and Bavaria. Would this be, in the long run:
-A benefit? Considering that these regions were majority-german and could be made loyal to the austrian crown with the promotion of a catholic south german identity to differ from the northern, protestant and prussian-dominated identity. The addition of more germans to the austrian multi-ethnic empire could be not a hindrance at all and strenghthen the voice of germans in the empire.
-Or a burden? The Austrian Empire could end up overstretched, and the other ethnicities could revolt under the prospect of the emperor being more focused in german affairs.
-A benefit? Considering that these regions were majority-german and could be made loyal to the austrian crown with the promotion of a catholic south german identity to differ from the northern, protestant and prussian-dominated identity. The addition of more germans to the austrian multi-ethnic empire could be not a hindrance at all and strenghthen the voice of germans in the empire.
-Or a burden? The Austrian Empire could end up overstretched, and the other ethnicities could revolt under the prospect of the emperor being more focused in german affairs.