London and Essex are among the areas at risk of being bumped up to Tier 3 when the Government reviews England's local lockdown system next week.
It appears several places could finally escape Tier 3 restrictions for the first time in weeks or months after rates plunged, in some places by more than half.
A Mirror analysis of coronavirus rates since November 26 - when the new tiers were assigned by Matt Hancock in the House of Commons under a revamped system - reveals which places could be moved up or down, or remain in their existing tier on December 16.
Infection rates are plunging in many Tier 3 areas, including Manchester, Hull and the North East, where local authorities are hoping to be moved down after weeks in the toughest category.