Looks like they'll be an announcement of new restrictions today - ministers meeting this morning so (despite papers last night) doesn't seem they've decided what to do yet - more places in Tier 4 or national lockdown, maybe. 
Robert Jenrick quoted in Guardian today saying 'A judgment needs to be made as to whether the tiered system is strong enough, or whether at some point in the future we need to take further action.' which sounds a bit ominous...