You mean Illyrians?
Well, to begin with, it might be good to have the Dardani successfully invade and occupy Macedonia
Not Illyrians as a whole , just us Autariates

. Probably culturally changed but still with distinct identity of Autariates . What happens to rest especialy those guys you have mentioned , is not what bothers Autariates . Except maybe strong Autariates unite all Illyrians which is highly unlikely cause rest of them were afraid of glorious Autariates and were very defensive , unaware that totaly foreign conqueror wont be so good toward culture of their ancestors as would people that come from the same ancestors . Well Heamus peninsula or Balkans , its always the same story only difference is its narrated through the different languages in different points in history and slightly different domestic population make up and different outside threats . But soul of our people stays the same , they like to dream about distant and murky goals and discard as garbage goals that can be done here and now . From italy to greece problems stay the same only time passes .