Vic+ pre-ordering and resee has been standard from LV for a while. On these on capsule collections I don't think they held back stock before, pieces often sold out before launch day, but there are returns and pieces can pop up online or in boutiques.
Was like this for Supreme, Nigo, Kusama. Latest Kusama was a larger collection and many pieces sold out pre launch, but some did pop up online and in boutiques.
Here, generally, Vic+ are told its best to try order more pieces to secure items and return pieces they don't want to keep, so that often leads to pieces becoming returned and available.
Also, in the past, there was separate stock for online, then for boutiques, but I think CA's can now order from online warehouse, maybe a regional thing.
I have my doubts, but let's hope pieces are available on launch day. I don't think any CA knows, but I'm also hearing things could be different for this collection. Corporate has been clamping down on non vic orders and maybe they want the hype of lineups at their boutiques. But also being told it's sold out during pre-order but available at launch will be a bit frustrating.