What happens to the Buccaneer item X if I upgrade or melt the package after this Monday?

It should be fine if you do it after it's been attributed, but not before. So don't buy a Buccaneer and melt it before the sale ends.

On Sunday, we're going to announce what the winning item is.

And it's 50-50 right now because we've had two days of each.

Yeah, two days of each. Towards the end of business Sunday, we'll know. We'll have an idea what it is. And we will attribute the item X to that item on Monday, according to Mr. Benjamin Fardell. So on Monday you will see the item appear on the website when you look at your virtual hangar, and you will have access to it in game if you bought it later this week. It requires another platform backend thing by Felix and he can't push that until Thursday of next week.