Since it's got to that time again here is an update...
I've not been out much since I got back a few days ago but here's what I know:
The Argentiere basin:
Routes on Grands Montets ridge are all looking great right now. Frendo Ravanel is a WI4 for the moment. lots of ice
The Verte: Sans Nom is showing black Ice as usual, but the Couturier side is all amazing. The Couturier itself is in perfect condition. Routes on the buttress below the Grande Rocheuse (Late to Say I'm Sorry, Bettembourg etc) are all in stellar nick as well. Same for the Vivagel which is a real romp right now. Have equipped the descent down Late To Say I'm Sorry and down the Couturier.
Droites: Ginat is looking good but the lower ice field looks like long sections of black ice covered by thin snow, so not ideal. The Colton Brooks is not in for the moment. Legarde Direct should be pretty good based on the Couturier.
Petit Viking got done the other day as well
Midi north face: routes not really all there yet from looking at it, but strangely enough Fil a Plomb looks incredible.
Reports of two climbers on the Carrington Rouse/ Terrey Rebuffat. Thin ice but the line is there.
Argentiere icefalls as fattening up but not fully in their peak yet. Though most of the routes are there.
More info here:
http://www.alpineexposures.com/blogs/chamonix-conditions
Have a good season
Jon