The big question for the next few days will be whether or not all the platforms have been extended to 10 carriage length.
Monday will see reduced services out of London Bridge in the evening rush hour, compensated for by 10 carriage trains running on our line for the first time - assuming they can open the doors.

mrwandle,
There will be 6 terminating platforms (a reduction of 3). As I understand it these 3 will serve through trains. The good news is that the plans (although not finalised) include at least some of our services operated by Thameslink and running through to Blackfriars, Kings Cross and beyond.