My trips down there, always end up going underground or a few times on the dlr, mainly due to convenience - so never been on a bus in London at all.
According to bus lists, the borismasters are all operated by Arriva.
Does anyone know if Arriva are getting the lot or if any of the other operators are getting some?

Edit: Not sure if anyone has, but stand at the front of a dlr train as it heads into Bank. Im not easily scared, but that trip freaked me out the first time I did it! No driver and heading down a steep gradient into the dark...