The upcoming Ghostbusters game has been a long time coming. Early last year, developer ZootFly poster demo videos incredibly reminiscent of Gears of War style gameplay. Copyright issues ensued. Then much later, Sierra confirmed they were working on the game instead. Then publisher Activision said they were dropping games, but Sierra said the game was still on.
Crazy, right? But if Sierra says they are still going through with it, then we'll have to take their word for it at the moment. Perhaps this one will work out too as Dan Akroyd and Harold Ramis are attached as lead writers for the game.