Today, the Finnish developer has tweeted a Vine video (made with plush toys) in which it teases one of the forthcoming update's new gameplay mechanics: portals.
In this 6-second looping Vine clip, a Red Bird is shown entering one portal and exiting a connected portal, narrowly missing one of Rovio's infamous swine antagonists along the way.
Nudge nudge, kill kill
We sincerely hope you'll be able to nudge obstacles and pieces of scenery - not just birds - through portals, and use them as makeshift weapons to destroy any defences those pesky pigs may have erected.
Rovio is yet to confirm a release date for this Angry Birds Seasons update, but we'll let you know as soon as it does.
In the meantime, check out Rovio's Vine video for yourself below.
Want more? Check out our 52 other Angry Birds Seasons news stories!