Come out and Trade ending?
Or could be returning an event like the Pirate Pin trading, "you wagered 1 pin and picked the treasure chest" Lucky winners got a 2 pins back in return (gold coin pin and random pin), even "losers" got a pin back based one what a prior trader had placed inside when they took their turn.
While company hiatus have a nasty habit of becoming permanent, there can be several potential POSITIVE outcomes from changes as well.
Several Disneyland merchandise locations already have small pin boards that are available during the day for trading. You need only ask to see them when a cast member is not busy working the till. With come out to trade down, they may have a few more of these on location in the park.
They may also be looking for a new / better location to conduct the Come out and Trade events. With the Frontierland / Westward Ho barrels nearly always occupied, the park may be looking for a greener pasture to conduct future trades. And I can instantly think of 4 locations for a more permanent trade area could be established - the vacant storage space above Star Arcade comes quickly to mind, as the the covered pier between Autopia and Small world, the Frontierland area near the "Paymaster" - just across from Westward Ho, and the small gathering space next to the Hat shop in Tomorrowland.
And they may really be planning a special event for Spring / Summer. After all they're going to be heavily promoting the new "improved" DCA. They may just move the come out an trade events next door. Or could be returning an event like the Pirate Pin trading, "you wagered 1 pin and picked the treasure chest" Lucky winners got a 2 pins back in return (gold coin pin and random pin), even "losers" got a pin back based one what a prior trader had placed inside when they took their turn.