Assume that either David Lloyd George decided to abandon the Coalition (due to failed negotiation of Coupon), or the Tory decided to dump him.
Unless there is a really huge butterfly (e.g. DLG got much more attraction), the Tory would win with a majority.
What would be the potential butterflies from this? At home or abroad?
Would a three party system last longer?
Would this affect Versailles, especially some major figures in Conservative party opposed the partition of A-H.