For future reference, in case anyone applying for the DAAD London scholarships looks back on this thread in future years:
My status for the DAAD Master's scholarship (all scientific disciplines, London) funding status has just changed from 'Application submitted' to 'Preselection made'. As far as I know, they held interviews at the beginning of this week - I wasn't invited, so I'm just waiting on the official rejection now. I can't remember my status changing to 'Preselection made' last year, but I know we got the rejection notice on the 9th April.