Maybe I'm misremembering, but it's pretty much only been a thing they've announced at the time of launch. It isn't that exciting of an event in terms of rewards. Maybe a decent chunk of units, but then infuriating amounts of shards that leave you at a weird number for all of eternity. No reason for it not to happen, and no reason for them to labor over a post to give players a heads up.
Chinese dont play this game, so call it Lunar NewYear
We've had one every year so far so my guess would be, yes why not.
It’s probable, as it’s run pretty much every year in the past, but nothing official announced yet - unclear if it’s been pushed back later than this week, will happen as a ‘surprise’ or has been unexpectedly cancelled. (Though I think cancellation is the least likely)