• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
You can easily fix that yourself. Just enter the EU:Rome/history/provinces cache, and find your way to the provinces owned by Dacia. Then just modify the civilization values to 50 or uppwards.
 
Does Dacia have a tribal gov't? If it does the same "outside influences" event which allows the Celts to expand in 1.2 will do the same for it - if not, it can easily be added, and this would give it a more realistic possible expansion rate than simple upping the province civ_values.
 
So it does has a tribal government, and if you just wait a bit (as long as your game is patched to v1.2) an event will fire allowing you to raise the civ level of your capital - after 10-20 years or so you should be able to colonize, and then you're off and running. All it takes is a little patience.