For shows, Festival of the Lion King at AK is great for kids and adults. Finding Nemo: The Musical is also good, but it is long and the kids might check out. The Frozen Sing-a-Long at HS is supposed to be rather good and funny actually.
Keep in mind you will have an all-new fireworks show at MK (not on party nights) called Happily Ever After. Also, Once Upon a Time replaced Celebrate the Magic as a projection show, though if it's been 5 years, I'm not sure you would've seen that. Either way, it is impressive.
Fantamic! remains my favorite show on property. It's just so good, with great music. I highly recommend it! Also, Festival of Fantasy, the only parade they have at the moment is also very good and worth seeing.