I think the entire area could be re-themed. Most people don't read newspaper comics anymore I don't believe, so its having less impact or familiarity.
After JP they really should target Toon Lagoon as the next area for additions/expansion. Two rides and a play area aren't enough for this land. They could finally demo the amphitheater and build something new there, as well as maybe add a flat ride of some sort across from that where the games currently are.
In all honesty, the only area of Toon Lagoon that needs fixing is the front area (amphitheater, open plaza, carnival games)
It's a complete waste of space that everyone skips on their way to Dudley, Popeye, and JPRA
Here's the dream expansion/renovation for Toon Lagoon:
.Amphitheater: bulldozed for a Mr. Peabody and Sherman dark ride which would give a new spin on trackless dark rides and have a show scene themed to Hill Valley to bring back BTTF (in cartoon form lol) - $125 million
A new entrance area with a huge colorful cartoon fountain and animated AAs, plus other small improvements through the land - $25 million
.Plaza/extra backstage space: replaced with a colorful fully-animated statue with the most popular comic strip characters ($50 million)
a new, smaller Toon Lagoon Theater gets a show themed to Garfield - $35 million
if there's room, a small-scale flat ride themed to Peanuts - $15 million (similar to Mater's Junkyard Jamboree)
.Carnival games/remaining extra space: a top-notch chairswings ride themed to Rocky and Bullwinkle ($20 million)
new station for Island Skipper Tours w/ Hagar the Horrible show scene in cave ($20 million)
.Dudley Do-Right: massive upgrade with new show scenes, AAs, projections and enhanced riding experience ($60 million)
The area just needs some love... after JP's expansion of course (2018 would be perfect)
I'd rather this area get renovated than a new attraction in Seuss