Arriva's out of Club area Rail Replacement continues to thrive, with a vehicle working between Lewisham and Sidcup on Saturday, and Lewisham and Dartford (I think!) on Sunday, and acting as Sidcup standby on at least Saturday. Other Club-area-ish vehicles were from GoBus and Travelmasters.
It's not the most ideal picture, but TfL rules on standing are quite strict, so it was the only angle available at the time. Here's Northfleet's 4091, piloted by a Gillingham driver, picking up passengers at Sidcup station forecourt on Saturday evening.
Chris