The International Society for First World War Studies is holding a conference at the Imperial War Museum in London on 10-12 September. Its title is: 'Other Combatants, Other Fronts: Competing Histories of the First World War'. Given the focus, it's not surprising that the schedule should be dominated by historians. There doesn't seem to be a paper on poetry.
The society is also establishing a journal, First World War Studies, which has just announced its first call for submissions.