Dacia is probably one of the most intriguing slavic countries. The country is very religiously and ethnic diverse and had more than one civil war because of it. One of the groups that suffered most persecution in the country's history were the daco-romanians, a minority group which speaks a latin-derived languages. Thinking about this, i was imagining what would happen if Dacia wasn't "slavicized" and its slavic population went to what is Illyria today.
OOC: inspired by one of my old "WI" premises: Slavic "Romania", Romanian "Yugoslavia"