The new Summilux-M 35mm lens will be available in stores this July – this was confirmed by a Leica sales rep today according to Smarkstracks.com:
New 35 Lux on a M9
“Until today however none of my Leica dealers could confirm the delivery date of the redesigned 35mm Summilux. But today a Leica Sales rep confirmed delivery of the new 35mm lens in July this year. According to the Leica sales rep, this lens has very high pre-orders in the backlog, so it will be hard to get one right at launch.”
The official announcement should happen in the next few days.
