I spotted some posters at Baker Street on Friday that advised of some significant engineering work that will affect the Bakerloo Line on weekdays at the end of August.
From Thursday 27 until Sunday 30 August, inclusive, the Bakerloo Line will be suspended between Paddington and Elephant & Castle. This means that the line will be closed South of Paddington on two weekdays, which will no doubt catch many people unaware.
The word on the streets is that the work is towards reinstating the crossover at Piccadilly Circus. This will enable trains in the Southbound platform to reverse back over onto the Northbound Line. I do not work for London Underground so cannot confirm that this is the case.
I have no idea when or why the crossover was removed, but if it is to be reinstated it must be good news long term, as it will improve operational flexibility for the Bakerloo Line in times of stress.