A staycation for the family would be great (just steer clear of the casinos and/or be prepared to answer your toddler's questions about them.) City of Dreams also has a Dreamworks theme park of sorts: http://cityofdreams.com.ph/entertainment/dreamplay - I'm sure your toddler would love it! You may also want to check out Museo Pambata or Manila Ocean Park when you're there.
No I haven't but we're planning to pay a visit at Dream Play by Dreamworks very soon. Or perhaps have a staycation in Nobu Hotel, if conditions are favorable. I've read lots of good reviews about City of Dreams. World-class entertainment place, six-star hotel, all the restaurants offering delectable food choices--everything's to love about City of Dreams.