BooNZ
Banned
I doubt either of the OTL British hawks (Grey and Churchill) would be trusted with the reigns anytime soon. Lloyd George OTL illustrated staunch non-interventionists could be swayed to war if British vital interests were under threat, but in the scenario provided, there does not appear to be such a threat on the horizon. The British industry and economy will profit[eer] from the conflict on the continent, while the doves and non-interventionists will continue to congradulate themselves for avoiding the ensuing slaughter. If Anglo-German hostilities are avoided in 1914, Ireland home rule is likely to take greater prominance in British politics. In such an environment it is difficult to imagine a crisis of a sufficient scale to drag Britain into the war anytime soon.This is fair enough, however it applies to the situation of the July Crisis and mobilisations on the Continent. Once this is done Cabinet and Parliament will face different crises and the benched hawks may come back into favour or the doves may become hawks when facing the next crisis.
Over time I could imagine increasing Anglo-German friction arising from a Germany suffering from victory disease and being increasingly less considerate. However, without Britain in the fight, I would expect the Entente to either tap out before 1916, or be in such poor shape that it would not be expected to last much longer. In such circumstances, the smart play from Britain would be to facilitate peace, before the French humiliation is complete.
As outlined above, the political tide would be running increasingly against the British joining the war, since both parties will be seeking to avoid conflict. You need to a paradigm shift in the diplomatic attitude of both nations, coupled with a series of blunders/ incidents equivalent to the OTL invasion of Belgium to get Britain into the war. Even suspect German diplomacy would struggle to boast British beligerence to such a scale after it recognises British neutrality is a reality.The new British decision makers will face different circumstances than those who faced the lead-up to and breakout of war and their reactions to these circumstances cannot be predicted with the ironclad certainty that you espouse.
British beligerance is not impossible, but certainly implausible base on the information we have available or plausible scenarios we can imagine. In context, if the British do not enter the war on a timely basis (certainly before 1916), then the Entente war is lost. Prima facie, an alternative German war plan that avoids or meaningfully defers British beligerence is vastly superior to the OTL 'plan'.