Also, two things to keep in mind
1 - Spielberg is part owner of dreamworks and has his beloved E.T. in the kidzone area, so I'm sure he will have some say in what goes in the area.
2 - Although Busch Gardens has a Madagascar Live show, One of the Universal perks of employment is getting free tickets to Busch Gardens, so it seems like a more harmonious relationship than what they have with Disney. I'm sure with the zone they have in Singapore, The good relation with Busch Gardens and Spielberg, they could end up working something out to have a madagascar zone in Universal