I don't know that this is a rumour. We received notice about the consultation a little while back and a questionnare from the NHS trust with some options for the future of NHS services in the area. From the looks of it, the prefered option was to remove the maternity facilities in Lewisham, along with some other services. It also includes Bexley, Bromley and Greenwich NHS trusts.

I found more details here for those interested: http://www.apictureofhealth.nhs.uk/

You can also complete the questionnaire online at that website if you have not received the hard copy consultation document.