Is it just me, or shouldn't this be a fall release? Halloween and Expo in the fall? Please take your time on this Stern. Get feedback along the dev cycle. Put some creativity into this. Seems like someone has already given you some really neat ideas (see above posts).
I love the Ghostbuster pieces. Could be an awesome pin.
Take your time. Take a year to get it right rather than shoving another GoT on the market.