Good question. I never got Proxima or Corvus, so the idea of having the full Black Order ended for me some time ago. I thought that if they made Cull he would pair nicely with Ebony Maw, but now seeing him, I'm not liking the overscaled size -- which also severely limits just where I can display him. As much as I want him... I think I'm going to have to pass.
That said, I never PO... so if this comes out really good, and perhaps gets scaled down a bit or if I can get his height down a bit by bent legs that don't give out, then I may very well grab him on release. I've done that with Ebony Maw, Ronan and most recently with Rick Deckard.
But I'm REALLY happy to see that they actually came through and made all 4 villains. Going to be insane sets for those who have all of them. Still wonder why In-Famous didn't make Corvus... or if it was TE, why the change to Toys Battalion? Maybe something to do with Hot Toys as Corvus was the only proto HT displayed.