I would be interested in it, and could help with Maps. My specific knowledge of this area is limited, most of my observations are about general trends and "Common Sense" sorts of things. Still, I'm always up for a timeline that doesn't endlessly shit on the Habsburgs.
@Norbert1980: I think Austria would keep their non-Imperial territories outside of the Empire-de-Jure unless they get some sort of benefit from adding them. Historically there was no such benefit, but in an alternate situation where Austria is able to push through Imperial Reforms that might not be the case. A PoD this far back will of course butterfly the Super-Germany you linked to, but the Habsburgs will definitely try to rein in the Imperial Princes and strengthen their authority.
As Richter von Manthofen said, it is unlikely that Austria will immediately be enemies with either France or Russia, but rather stay friends with both for a fairly long time. Austria is probably looking towards at least a decade of complete security, with a stranglehold on The Empire and being surrounded by Allies, with only their Southern Border being unsecured. But again, with Russian support that is hardly worrying.
Austria might be able to get France to abandon the Ottomans if Austria keeps supporting France against Britain. Austria won't have any appreciable navy to provide direct support, but if France can count on Austria staying truly neutral, that means their only major Continental Threat is gone, meaning they'll be able to actually focus on Naval Matters somewhat. This isn't likely to last forever, but it could last long enough, however I doubt it.
Eventually Austria and France will have more competing interests then they have compatible interests, and they'll drift apart. In all honesty, the sooner this happens, the better for France. If Austria truly solidifies their hold on Germany, France is going to be in for a world of hurt.