Reducing the self isolation period to 5 days, subject to negative Laterals, seems to be coming tomorrow. My slightly informed speculation is that Grant Schapps - who is preparing a review of travel restrictions designed to stay in place for the rest of 2022 - is arguing for no testing at all, just PLF, but for more focus on up to date vaccines. He was the first cabinet minister to be vaccinated due to being immuno-suppressed.