language advice

I have been trawling through the forum to see if this has come up before, but I can't seem to find anything. Basically, I am wondering how easy it would be for a distinctive Galician (the East Slavic variety) language and culture to develop, separate from Ukrainian. Basically, it needs to be...

I figured it would help if we had a master thread for all alternate terminology/vocabulary discussions. Most of the threads started for asking this kind of advice die pretty soon, only lasting for a couple of posts or a couple of pages at most. So, to prevent cluttering the forums with these...