The decision on whether or not to extradite is a matter for the courts, not government. The High Court ruling not to extradite the five individuals from the UK was a final and independent decision.
The Metropolitan Police War Crimes Unit is assessing the alleged genocide offences following the January 2018 request from Rwandan authorities to investigate five individuals in the UK. As part of this exercise officers from the Met's War Crimes Unit visited Rwanda in late October 2018. Enquiries continue and it would therefore be inappropriate to comment further at this stage.
The then Foreign Secretary, Rt Hon Boris Johnson MP, discussed the UK High Court judgement and the request for a Metropolitan Police investigation, when he met Rwandan President Paul Kagame at the 2018 Commonwealth Heads of Government Meeting. British High Commission officials in Kigali continue to discuss this issue with the Government of Rwanda.