I’m gonna have to ask you for a source on that. They’ve always clearly announced details like layering in blue posts, making it very easy to find.
I’ve also seen all of the recent interviews about layering but i don’t hear them confirming it to make it into the official game on August 27th. Would be odd to confirm it while they’re still testing it and seeing if it does the trick not just for them, but also for the community.
They’ve also changed their mind on bringing this game to live again, even after many years of shutting this project idea down over and over.
Regarding expenses, Blizzard was more than capable of affording Vanilla’s expenses back in 2004. They were at such a disadvantage back then compared to now as well, where they have extremely good tech at their disposal.
Their mission as they announced it now, is to bring back the authentic game (not a timemachine to 2004!), and layering is not gonna let them do that.
As a business, they should also have interest in satisfying their playerbase, and this playerbase very clearly asked for, and wants Vanilla aka Classic, no layers, no sharding. Just the normal game, from Day 1. That’s it.
They can afford to do this big demand justice, and release the game people have been asking for without changing it this drastically. They’ve managed before with overall great success as early WoW shows, regardless of old times hardware on both ends.
The question is, are they gonna stick to their own principles and find a way to deliver on them, or are they gonna deviate on #nochanges and risk a very bad reception of Classic, because it’s not Classic anymore for weeks and months in?
As a business, they should look out for their reputation, especially with their core audience and longtime fans who have just 1 request: Vanilla, #nochanges.