My planning so far:
last 2 weeks of may : HW, SFKK, KI, CP, Dorney, Hershey, Kennywood, Knoebels, SFGA, SFA, BGE, KD
April, May or June : a few days with my oldest daughter to Gardaland and Movieland
August : Disneyland Paris with wife and kids
Octobre : Port Aventura with my wife.
And of course lots of day trips : Toverland, Moviepark Horror Fest, Walibi World Fright Nights, Parc Asterix, Holidaypark, Phantasialand, .... and who knows I will end up in some parks in Belgium aswell