Guild Wars 2

Will the reward come back up anytime during Winters day?

I would like to know this as well, as my bank is cluttered with commendations thanks to the removal of this content with no prior warning.

Same. I had been storing up useless rares from FotM and dungeon runs and finally turned them in and was planning on buying a few keys.

I get the feeling that the vendor will be back without keys, because this vendor allowed people to turn gold into keys without any Gem Store involvement.