No, I don't think it would have been. As I mentioned in another thread, the Stuarts would have probably maintained the central authority in London, there wouldn't have been a return to the two parliament system as they promised to some supporters. As Phil has hinted, that would have been too much work!

Instead, much time and effort would have been wasted fighting over religious establishment issues. Scotland (or 'North Britain' by that point) itself would have just languished and the Highlands would have become even more of a 'Land Before Time'.