Unfortunately there is one key data element that is missing from the vaccination data that is not being made public (for good reason). Whilst London is clearly at present the lowest achieving to-date, it is not clear whether this is due to poor availability of vaccine, limited numbers of suitably qualified people to give the jab due to the tremendous health pressures in the capital or whether there is a higher level of refusal here. Refusal could be due to socio-ethnicity, religious or other reasons combined with always present number of anti-vaxxers.
I do of course fully understand why the government is not going to make this information available yet, as it would undermine the campaign, but the level is important because as English politics is invariably London centric, any slippage here could delay the slow incremental loosening of restrictions across the country as a whole, even if the tiered approach was re-adopted.
Whilst it wouldn't be ethical, from a hypothetical point of view I would look at managing the new case data to ensure that the reported rates of infection made public don't decline too rapidly, just enough to ensure that hope is given, whilst still encouraging people to have the vaccination when they are able and keep the lockdown pressure on. The data could always be corrected later and blamed on a 'systems or administrative error'.
Having spent quite a number of years in public sector Informatics, I treat the public Covid-19 data with a note of caution, particularly as I know much of it is not created in an NHS 'super-computer', but extracted from a large number of individual and differing systems and then manipulated by both automated and manual methods (e.g. Excel spreadsheets) to arrive at the final dashboards. That is not meant as a criticism, as I think it is amazing the volume of data being made available daily in very difficult circumstances.