The House of Commons has voted for “English Votes for English Laws” (EVEL).
This means that in Parliamentary votes on matters that only affect England, English MPs will have a veto. It is expected that this will make life difficult for future non-Tory governments, since the Tories tend to do better in England than the other nations. It also places enhanced power in the hands of the Speaker, who will adjudicate which issues are “English” and which aren’t.
Beyond that, the change runs the risk of entrenching the emerging divisions between the constituent parts of the United Kingdom.