Now Bézier is getting a jump on SPIEL '19 plans by announcing the October 2019 release of Suburbia: Collector's Edition, which will include the original base game, the two expansions mentioned above, the Essen SPIEL and Con Tiles mini-expansions, and a new "Nightlife" expansion that features "buildings and locations that are more active in the evening hours and dramatic nighttime artwork".
The entire game has been redesigned with 3D artwork by Brett Stebbins, which will be featured on larger game tiles that will be housed in a tile tower that's integrated into a Game Trayz market layout. This edition retails for $100, and Bézier Games plans to run a Kickstarter campaign for it sometime in 2019.
I've asked about the availability of the "Nightlife" tiles outside of this edition, and Bézier's Ally Gold says, "There is currently no plan of releasing Nightlife on its own. I would not say never but definitely not anytime soon."
If you're unfamiliar with Suburbia, here's a summary: Each turn, you buy a tile from the market and add it to your borough. Each tile has a cost on it and an additional cost ($0-10) is added based on the position of the tile in the marketplace. As tiles are purchased from the cheap side of the market, other tiles slide into those slots — which means you can spend big for a tile that you really want or hope that others will push it up so that you can buy it for less later.
Some tiles give you a one-time income boost, while others raise the income you receive each turn; some tiles boost your population on a one-shot basis, while others increase your town's reputation, which will keep your population rising turn by turn. Placing tiles adjacent to one another might give you bonuses or penalties based on what they are — factories shouldn't go next to houses! — while other locations are affected by tiles anywhere in your borough, or even in other player's boroughs. In the end, the player with the highest population wins.
For more details, you can check out this overview video I recorded in 2012, apparently while attempting to impersonate Nicolas Cage: