So Ceadar Fair Online (facebook) Told me today that Vally fair is doing a 9 million dollar expansion, which include Planet Snoopy for 2011. Article about Expansion

Sounds to me like ValleyFair could be in line for a Planet Snoopy or some other similar family oriented attraction. That is based on the quote from the Valleyfair spokesperson alluding to the fact that the new addition will help attract families to the park.

It's been confirmed that they are getting Planet Snoopy though...

http://www.valleyfair.com/public/news/index.cfm?story_id=95&mode=story&current_root=12

Can't get any better conformation, the news release from Valleyfair.

14 new rides is a bunch even if they are all kiddie rides.

http://twincities.bizjournals.com/twincities/stories/2010/08/02/daily40.html

Map:

http://www.valleyfair.com/_upload/Valleyfair%20Aerial%2001.pdf

EDIT: Looks like the third biggest compared to Carowinds and Kings Island.