They should make Scotland a monolingual Pictish-speaking country!
Anyway, Scotland has had a very shifting history, regarding languages, so there is no specific single originally Scottish and Scottish-only language (that is known to us), that they could have a nominal policy to return to, as in Ireland, Wales, Man and Cornwall.
Do people care about the language? From what I have read, it seems that they, in general, are content with English, sometimes turning to Scots when craving to be a little spiced up with local peculiarities, while especially Scots Gaelic is neglected.
For independence, I would not mind having an independent Scotland, but I would prefer something else. Instead of everyone striving for independence, we could have worldwide system of similar levels in government, going from municipal to global level, where Scotland would remain as a selfgoverning part of the UK, among other similar parts. It was unfortunate that they ended the process of British regionalisation.
On the other hand, corruption and mismanagement seems to be rampant everywhere, especially in large and powerful places, so making everything smaller does seem attractive in that light. But I still want some similar developments everywhere, so England should be split in a new heptarchy, or something ... or at least depopulated until in could feed itself on local production.
Given that the establishment is opposed to Scottish independence, I would vote for independence if I had the opportunity, but I am not Scottish. In the Early Modern period, the Swedes considered themselves, the Scots, and the Swiss as being the same people, but that view might not have as many followers today.
Sometimes it is claimed that Scotland does not have the economy that independence demands, but that would be solved one way or another if it became a reality.