I don't believe new boxes will be over 2 peds, maybe not even that. Since new mayhem format and 24/7 hunting there is just too many boxes and only a certain amount of people opening
Its not about a new format, Summer boxes kept the 3p price during a 2 month long migration of nonstop farming.
Box prices are based on seasonal ring prices in them.
This 1.5p halloween box can jump back to 2 - 3p each based on how expensive will be the 2022 halloween ring.
For example 2019 summer boxes were down at 1.5p each too, because ring was 9-10k when it was in the box.
A bit of exception from that is the 2020 halloween ring, there i dont remember cheaper price for box, but ring was cheap back when it was in the loot.
That can be the side effect of every other box was very expensive becuase of all the great rings in them, summer 2020 (in 2021 too), christmas 2020, easter 2021.
As the halloween 2021 boxes were first 2p each, and went cheaper because the huge ammount of cheaper 2021 christmas boxes.
But, if 2022 easter ring will be awesome, box will be expensive, not 1.5p each or cheaper.