Scribe
Legend
I mean...I dont want to believe that WotC is that inept that they would be making the various changes they have been making for multiple years now, without enough data to support those changes.And if that old stock sells better? Used ones go through the roof? There are a lot of PHB's out there. Probably in the channel too.
In a world where they update the core (5.5) and discontinue the current core (5e) and 5.5 craters?
Other than me laughing, for a very long time, I would really have to question...well the last several years of post Tasha work, and how/why it took place.
That said, I simply cannot see it. 5.5 will sell as well as 5e, if not more so, because its not going to be a wild departure, and it will be the new hotness.