Just to add, last week i was looking at amending my parking for Christmas (adding an extra day) and the only option showing was Short stay are ridiculous rates.

Today i checked again, and the POD parking is showing again, and it let me add another day for £3.40.. which i was impressed with, so it looks like they have penciled in some dates to reopen again.

Looking at the searches, the plan is to open POD and T5 long stay from the 1st September.