Guild Wars 2

I’m not in game yet, but I have a few questions regarding Mad King Chests and the skins that were available last year:
Ghastly Grinning Shield Skin
Scythe Staff Skin
Grinning Gourd Rifle Skin
Severed Dagger Skin

First-off, can you still get Mad King Chests?

If so, can you still get the skins from the Mad King Chest that were available last year?

I didn’t blow all my money on the Ghastly Shield/Scythe skins last year because it was all I had, thinking that I would have another chance this year (especially since you could still work towards some of them). Am I out of luck? With only 1 shield skin in supply, that would really suck.

It would be nice if we knew in advance if skins were one-time only. The lack of clarification on whether things return or not, is rather disheartening.