consultations.tfl.gov.uk/crossrail2/october2015
The latest consultation is open for crossrail 2 and it looks as though Balham Waitrose will disappear and a shaft will be placed on Wandsworth Common - opposite Honeywell Road
Some more info from TFL here - their reply to Sadiq Khan's questions sadiqkhan.nationbuilder.com/crossrail_2_the_best_deal_for_tooting