In reply to James Oakes:
James,
We were there last Wed-Thu. There was snow from below the Soreillier hut all the way up to the descent from the back of Aiguille. You definitely needed decent shoes/boots and crampons for the descent and very useful to get to the start of the route. I assume the hot weather has continued and the snow may have receded but I dont think it will all have disappeared. Have you tried calling hut?
Best of luck, looked lovely
Post edited at 18:45