Depends when the war starts. Ireland was on the brink of a civil war. If WW1 does not kick off until the autumn then the Irish civil war could break out before then. In that case no BEF in France before 1915.
That's also true. Plus, if the war is delayed for much longer, Britain might start to reevaluate its alliances in light of Russia's planned naval and railway buildups. While I highly doubt Russia would've surpassed Germany by 1917*, nobody would know just how problematic the Russian military actually was, and treat Russia as a far greater threat that it actually would be. Add to that the Anglo-German detente from 1912 onwards, which would likely have returned relations to a cordial state, and Britain's allignments might be in doubt by TTL's 1917 or so. And who knows, maybe armored cars and motorization would've allowed one side to blunder their way to a costly victory within a few months to a year had the war been pushed back, preventing a devastating four-year stalemate.
*People misunderstand Germany's fears at the time and mistake their comments for evidence that Russia would've become a superpower by 1917. Germany's comments need to be understood on the context of Russia's railway buildup, which would've improved their mobilization enough to make the Moltke Plan unworkable. Russia didn't have a chance in hell of surpassing Germany by 1917. And on a larger scale, the 20th century was terrible to both countries. Without the wars, Russia would probably have some 400 million people and a GDP per capita similar to OTL's Greece by TTL's 2024. Germany would have a population of around 150 million and a GDP per capita similar to OTL's Denmark by TTL's 2024.