AwesomeButton
Proud owner of BG 3: Day of Swen's Tentacle
It's a big assumption:The news is that Braindances will function as a series of collectibles
No, they said it wouldn't be a collectible. Or is that what you're assuming because of their suspiciously specific denial?
They said there is a story behind the braindance sequences. I am assuming there will be a fairly big number of them scattered throughout the span of the game - both spatial and timespan.
If there will be multiple braindances available at the same time, this means the player will be able to play them without a specified order. This in turn means that the clues that the player has to collect will work like pieces of a puzzle and won't be related to one another, but gathering a certain sets of clues will unlock a respective part of the overarching quest. Therefore, collectibles.
I imagine it like the clues you collect to unlock witcher gear, but taken on a bigger scale.