An idea that would be incredibly fun for fans and litteraly free money printing machine for blizzard. A tabletop miniature game similar to Warhammer but in the Warcraft universe.
The miniature painting hobby seems to be on the rise, even from being extremly popular already. While i was painting some of my minis i started fantasizing how awesome it would be to be able to paint and play warcraft armies. If blizzard would hire a team to develop the game and design the minis etc i think it would be an INSTANT hit with an already huge fan base. The effort needed to pull this off and the payoff potential for me looks like a no-brainer.
Along with all the obvious factions like taurens, elves, orcs, humans etc there are so many possibilites for amazing armies to paint like murlocs, nagas, ogres, pirates etc.
This would also benefit the warcraft franchise as a whole bringing new people into the universe and being seen in more settings.