I am aware of this, my question is if Habsburg-Lorraine for some reason couldn't claim the succession or didn't exist who inherit the Habsburg lands.Habsburg did become completely extinct in 1780. The house of Habsburg today is not really Habsburg, but the house of Lorraine.
The house of Habsburg Lorraine is about as Habsburg as the House of Tudor is Plantagenet.
I am aware of this, my question is if Habsburg-Lorraine for some reason couldn't claim the succession or didn't exist who inherit the Habsburg lands.