Regional Revivals?

Not if one of the most populous places outside London had seceded, and on the Mainland by far the most politically self-conscious.

Taking a third of the territory, much of the financial services sector, several major universities, and so on.

England would be more dominant than ever within the United Kingdom, and London would be more dominant than ever within England.

A positive vote by Scotland to remain within the United Kingdom, as mercifully everyone now expects to happen, ought to be the signal for greatly expanded coverage and articulation of the whole United Kingdom to the whole United Kingdom.