Reiner Knizia and the polyominoes
Yes, I know, these aren't ground-breaking or very novel ideas right now. Also they are very simple games. But even in the last (weaker) year I could see when he makes a big box board game he tries to mix previous ideas into something more complex and entertaining*. So maybe we just have to wait until he creates his The Princes of Florence or Arkadia using the polyominoes in a complex game. So... I'm watching.
*I do think these big box games have really succeeded:
Jäger und Sammler - uses a mechanism that's somewhere between Through the Desert and a game not by Knizia, Hey That's my Fish (which already used some ideas from Through the Desert), combined with different ways of scoring. It's a fine family game that deservedly got a Spiel des Jahres recommendation.
Keltis: Das Orakel - is like a mix of his often-used idea of Tutenkhamen, Keltis and his linear adventure games; also the most gamer-friendly box of the Keltis titles.
The Hobbit - I've only read the rules so far but it uses a simple but fun cardgame mechanism as a basic mechanism for another one of his linear adventure games; also its rule variants add some Lord of the Ring-ish favor and some Tigris&Euphrates/Ingenious-ish scoring element.
- [+] Dice rolls