Guild Wars 2

Question in the title.

I still have ~100 of those in my inventory.

Will they be removed after the 15. april, or what will happen to them.

Do I need to open them before april 15th?

I have no idea what to do with them.

The chests are worthless
their content is worthless
the items i get when salvaging the content is worthless…or at least, soon will be.

So, what to do?

Oh, and another question:

Will there be any tournament-bound rewards (chests) in the future?
Or will the only thing we get from tournaments bee a faster progress in the reward tracks?

Chests will be removed.