Well I love Wonderworks whenever I visit, I prefer it to Ripley's Believe it Or Not, it is an up-side down house and you can stand in a real space suit, lie on a bed of nails etc...
If it is Theme Parks you want however I think you have covered things.
I would also recommend an I-Trolley 7 Day/ 2 Week Ticket. It is amazing value and it stretches all the way up International Drive. Even if you have a car I would still recommend it as you get unlimited access and Car Park's are horrendous! It also drops you off right outside. Although it does not look it Universal is a 10-15 Minute Stroll and is very easy to get to, (I can't remember though, just ask their kind enough)
Also, (Now this is stretching my memory) Miller's (Or something like that) is a lovely place to eat, Chilli's is lovely (It's not all spicy food by the way, I don't like spicy and loved it) Dunkin' Doughnuts, Perkins (Breakfasts are lovely) TGI Friday's (Lovely, better then the UK).
That is about it, I am strecthing my memory and some may not be their though XD Also, enjoy, relax.
Thanks to Lewis97 for my Amazing Signature!