This is the West Lothian question. British Labour wont confront it, because it likes having Scottish Labour MPs able to vote with the government. However, David Cameron is willing to confront it. The Daily Telegraph reports that the Conservative Party will require that only MPs from England will be able to vote on matters regarding England. Other MPs will not be permitted to participate.
This is a sensible position to take, it avoids any nonsense of more assemblies and the like, and removes the nonsense of matters of England being voted on by MPs from other constituent countries of the UK when it doesn't affect their constituents at all. Amazing, the UK Conservative Party isn't disappointing on this issue!