This week the government confirmed what the new tier rules will be, and which area is in which tier. This appears to be a misunderstanding - there’s no limit of the number of people in a Christmas bubble (for example, eight). your household with a loved one who lives alone) you count as one household for the Christmas bubble rules, so can join with two other households. The Christmas bubble rules are the same no matter what tier you’re going into next week. But over the five-day Christmas period, you can travel freely across tiers and national borders to form your Christmas bubble.
Source: Daily Mirror November 28, 2020 06:56 UTC