For those of you planning to use Catford Bridge (or Lower Sydenham) to reach Waterloo East or Charing Cross. If you're a season ticket holder from FH or HOP. Forget about it, it won't be valid unless the line is closed and Southern arrange permission with Southeastern. A travelcard or a season from Catford Bridge may be a solution for the period.
As a rule, if the train goes to Charing Cross, it won't call at Lewisham, St. Johns, New Cross or London Bridge, running fast from Ladywell to Waterloo East.
The whole Hayes line won't have through Charing Cross services from around 8.30pm from January. After that time, they start from Cannon Street which will call at London Bridge.
Alternatives to consider is to travel to Lewisham, which will have more trains to Charing Cross, or use the DLR from there to commute to Canary Wharf. This may be a viable alternative if those Overground trains from Canada Water get even worse for the crush despite 5 car trains running soon.