Looks like we’ve got 3 weekends without a full rail service from our local stations coming up! This weekend there will be no London Overground or Southern trains between New Cross Gate and Crystal Palace or West Croydon at all. According to Southern Railways there will be replacement bus services every 10 minutes for all stations to New Cross Gate northbound and southbound for all stations except Penge West but including Crystal Palace to Selhurst (although TFL website shows the southbound service going to West Croydon after Selhurst!)
Southeastern services from Catford Bridge to London Bridge/Charing Cross and Thameslink from Catford or Crofton Park to Blackfriars seem to be running so may be better options depending on where you live and your final destination.