In the meantime, though, I'll write up several posts about the fair, starting with a detailed description of one of the few games that I did play: Andrea Mainini's Origin, which French publisher Matagot plans to release in Q3 2013. Here goes:
The game tokens in Origin come in three colors, three heights, and three thicknesses, and at the start of the game one of the smallest, skinniest pieces is placed in the center of Africa. In addition, you place three technology tiles at random on the tan, orange and violet sections of the tech chart and six random tiles on the brown section; the tech tiles show 1-5 arrows. You also shuffle tan, orange and violet decks of cards and place them in the appropriate places. Tan cards provide an one-shot effect, orange cards give you a permanent power, and violet cards present you with an objective you must meet; if you do so, you can play the objective card on your turn, and immediately draw another. You can play at most one card of each color each turn.
On a turn, a player takes one of three actions:
-----• Place a new piece on a region of the game board, with this piece sharing two of the three characteristics of a piece in a neighboring region; the new piece cannot be shorter than the original piece. Mark this piece with a token of your player color.
-----• Move one of your pieces on the board to an empty region, with short pieces moving only one space, medium height pieces moving up to two spaces, and tall pieces up to three.
-----• Take over a region controlled by an opponent by moving one of your pieces into this region and relocating the opponent's piece to the region your piece left. You can do this only if the attacking piece is thicker than the opponent's piece.
In addition, you can score points during the game by occupying a grassland on a continent or the two regions on opposite sides of a waterway strait.
Players take turns until either all of the pieces are on the game board or all the tiles have been acquired or all the cards of one color have been drawn. Once this happens, players tally their points for objectives, grasslands, straits, tech tiles, and cards still in hand to see who wins!
It's hard to say conclusively after a single play, but Origin seems to hit that Ticket to Ride-ish family/gamer divide in that those with limited gaming experience can play decently and score points and feel like they're doing something, while those who are more experienced with games (or *ahem* those who are less sleep-deprived) can put everything together more strategically to leave themselves more options on future turns. And of course with better knowledge of the objectives, you could pay attention to who is playing what and know what might remain in the deck, thereby driving your actions based on future scoring possibilities.
One note on the production: Hicham from Matagot noted that the final version of the game will likely have a darker dark piece since the two browns appear too similar in dim light, as can be seen in the photo above. As always, every release has hundreds of details to polish prior to being sent into production...