Ottomans definitley could not hold Vienna or austrian land, but they didnt want to do that, they simply vanted to deal with the Habsburgs, and concluded capturing Vienna and probbably burning it to te ground would be a big enough blow for Austria to be out of the picture in eastern Europe
i agree there would be some kind of expanded "Holy league" or "second Holy league" but it is not probbable these would go further than Budim, or they get stopped in the mountains of Bosna and Transilvania, and then pushed back again
so even if they lose all of nevly gained hungaryan land the Ottomans have still won a longterm wictory since they would have got rid of their main enemy and ended some 100 years of border wars
this new holy league would probbably see as its goal pushing the Ottomans back as far as they can, so once they percieve they have done this, or suffer the first defeats, they would start turning back and soon concentrate on who fills the new power vacuum
id guess France would atempt to dominate most of the ex-HRE, and there would be a new series of wars in midlle europe
after this olnly Poland would try and maintain a serious war against the turks, most others would just send some mercenary troops or pay to maintain local militia, with ex-habsburg lands becoming a kind of militarised buffer, similar to the Kraina in OTL Austro-Hungary
the Ottomans would most likely act to stabilise and secure their gains in the next few decades and then stop their advance into midle Europe, possibly concentrating on the rest of East europe, wich concerned olnly Russia
as long as Poland would continue to fight the Ottoman empire, most other European powers would consider it enough to send some simbolic help here and there and be busy with their own problems
later during the 18th century there could be some kid of reconquest, or if the Ottomans play their cards right, they could become a major player in European politics an make strong aliances
developments in the fields of military tehnology, tactics and doctrines that might be asimilated by closer contact with midle-european forces, but also exchange of cultural influnces, could cause big divergence from OTL
no doubt the reneval of conflict in disputed HRE territory would lead to new religious conflicts and religious/political prosecution, so a strong Ottoman empire might see a lot of refugee imigration, as it was tolerant thovards most religious practices and left people alone as long as they payed their taxes
this could help boost developing civil society in Ottoman urban centers such as Osjek or Sarajevo, or turkish Budimpest, wich were going trough a period of growth and development under Ottoman rule
also a big weight would be lifted from the Ottoman empire, as it would no longer have to deal with the Habsburgs, and would hold the areas of Croatia and Hungaria that caused it the most trouble in OTL