Drivers' hours rules (and hence the requirement for a tachograph) only apply to goods vehicles over 3.5t
https://www.gov.uk/drivers-hours/goods-vehicles
As the rules are laid down by EU legislation (and it takes ages for all EU countries to agree on any changes), nothing is likely to change within the foreseeable future.
CPC rules only apply to goods vehicles within the 'C' licence categories. A normal 'B' (car) licence is all that is required for vehicles up to 3.5t
https://www.gov.uk/driving-licence-categories
Unless Google is being unusually obstinate, there seem to be no plans to extend the CPC rules to van drivers.