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I'm in a Discord server with Johnny Jansen (aka Buisnessmoose, former Club Penguin moderator and current LEGO employee). They're currently doing a challenge whoever builds the best moose out of LEGO's has a chance to be featured in an official LEGO video. If you guy's wanna particpate you can probably tweet him (@clubmoose) with a picture of your build and he might see it.
Some other interesting information: people in the chat asked if certain sets could be brought back and he brought those sets up with one of the product leads for LEGO. So it's possible some older sets might return in the future. Johnny also mentioned they're meeting with set designers Niko Vás and Carl Merriam later this week.