In reply to Tricadam:
Some years there will still be things to go at. There are some high ice routes on the Freney and Brouillard faces, for example. And on the north side of the Verte (eg, the Bettembourg). Ephemeral lines on the Jorasses have been climbed in June. Other routes besides the Chere on the Tacul could be in nick. As ever, it all depends on weather and conditions from now until then.