UPDATE 10/7/18: Planet Coaster's new Vintage Pack DLC update, which adds a host of new building elements to the base game - all inspired by the golden age of theme parks in the early 20th century - is out now, and there's a lovely launch trailer to accompany its release.
The new video offers a welcome look at the various new scenery items, rides, props, and visual effects included in the DLC expansion, and I'm happy to see that it's considerably more impressive than Frontier's somewhat vague initial announcement made it sound.
Previous DLCs (the Spooky Pack, Adventure Pack, and Studios Pack) have offered new thematic twists on the core game's modern-day theme park aesthetic, but the Vintage Pack finally gives park builders the tools to create spaces with a notably different ambience - all wooden promenades, twinkling lights, and charming period detail.