Cannon street step free access

I have been trying to find out some information on the cannon street redvelopment. Neither TFL nor Network rail list this on their respective project pages and there does not seem to be much communication about timelines etc.

I was also interested in the apparent oddity of providing step free access to the westbound platform but not to the eastbound?
With cannon street a stones throw from Bank and in the heart of the city this would have been a really useful place or disabled passengers to be able to disembark and providing step free access to one platform smacks of a half done job. An article on Londonreconnections pointed to a fully step free solution:

"Further negotiations have been ongoing with the developer to provide step-free access to the eastbound Underground platform as part of the construction of this development. This would involve deepening the currently proposed lift shaft to the westbound platform by an additional level, digging a tunnel underneath the District and Circle line tracks, and providing another lift to the eastbound platform level. Such works would be at TfL's expense. This is very welcome in that it will eventually make Cannon Street Underground station fully accessible in both directions to persons with mobility impairments."

...but the latest TFL business plan seems to indicate that they are going to proceed with westbound only. Lets hope current plan allow for the lift shaft to be dug to the depper level so as not to preclude carrying out the whole job at a later date without too much disruption