Worth noting as well that should independence be successful, the SNP will probably be finished. It's job will be done.
Smart politicians will find a way. Re-elect us to safeguard our new independence!
It doesn't tend to work that way. Once the mission is accomplished broad-tent parties with a clear-defined goal like the SNP fall apart. Their only hope to continue to exist is if there is some collective other goal to be worked towards/ collective ideological background, or if they somehow manage to throw themselves up as the 'natural party of government' of the new political entity they have created (think: ANC). I don't think the SNP is Scotland's natural party of government and they don't seem to have a very clear-defined ideological profile beyond their nationalist aspirations.