Just tuning in to say, as a former KidZone TM: Woody was a 40 second ride. You'd stack every single train - it would not be worth it to add a second train on. While the brake run at the end of the ride is longer than the usual production model, it's not got the proper blocking to support two trains. Keep in mind, this is a coaster that also rarely goes down for refurb, and they have actually pulled a single car off at a time to teardown/rebuild during slower seasons (basically running 7 cars/14 riders instead of 8 cars/16 riders), so capacity isn't really a concern.
What they could do is get a new, modern train for the ride. The old train model had a bench seating and shared lap bar, plus the netting over the leg/exposed areas. This causes a big gap between an adult and a child in the same row. Newer models (see also: Singapore's Enchanted Airways) have an emphasis on higher, upright seating and individual lap bars, which also adds legroom for adults. I don't know if this is possible with the clearances, but if the scenic elements are designed with this in mind, it would make sense.
Also, improvements for the exit, giving space for child swap, ADA access, and more room to clear the train, would be amazing. It actually comes up quite a bit being the most accessible family coaster in the park, so it would be nice to see improvement made there. I could also see a unique sound system being added, which was completely lacking from the old ride. Spiels, music, etc. All we had was the bell!