I believe a lot of work was started in ?2014, which then stopped perhaps 18 months later.
New signal posts were put up on the Shepperton branch (a lot of work done during the Fulwell blockade for the drainage system, unsure what year that was, perhaps 2015). Last time I travelled the signal heads were not in place but haven’t been up it for ten days or so, however the crossover at Kempton was taken out a few years ago along with renewal of the ground signals (still bagged).
Lots of new signal cable trays were being dug from Twickenham round to Kingston but it doesn’t even seem like there’s much of a timeframe of it at present; seems like a ‘three men and a spade on alternate Mondays’ type operation.
Apart from the branch line, there’s pretty much nothing else to report.