The game looks attractive. The concept of trade focused empire buiding games is always very interesting.It reminds me a mix between the trade concept of Europa Universalis and Machiavelli the Prince. The Tabletop appeal is charming too. Wishlisted. The incoming army of DLC's is frightening, though
My thought exactly. Concordia looks nice and tidy but grand European strategy + DLCs remind me badly of Paradox games and their abusive myriad of DLCs that, let's be honest, are necessary if you want a normal and full game experience.
I'll wait for Concordia's DLCs to be revealed before contemplating buying even the base game.
Note that this is a digital implementation of a board game. The DLCs are the digital implementations of the physical expansion maps, of which many exist simply because of the huge and unceasing popularity of the boardgame. None of them are required to play or enjoy the game - they're strictly alternative maps, for variety; some offer a more competitive 2-player experience, some have some gimmicks to alter game play a bit, but the base game maps have plenty of life in them by themselves. I'd recommend getting only one or two expansion maps at most unless you discover yourself to be a huge fan and playing all the time.
(Salsa is the main exception, as it offers a new resource - but that's also generally considered to be the weakest expansion, which most people prefer to play without.)
The main difference between all maps is the number of provinces and cities (the more there are on the map, the less "competition" there is in the game for being the first in certain locations), as well as the distribution of land and sea routes between those cities. The base game should come with two maps: Italy for 2-4 players, and the Mediterranean for 3-5 players.
Also note that Concordia is a solid mid-weight euro game; you can expect it to be a noticeable step up from a strategy perspective than what you might be used to if you're mostly used to playing Catan, Dominion or even Wingspan. It's certainly accessible enough for new players, but both optimal gameplay and the scoring system might take a little bit of getting used to.