Just saw it, now resting in the land pavillion. Was a really neat show that told a story about respecting nature. The circle of life, among various other 'lion king' music was in it. Timon, pumbaa and adult Simba were in it with new animation not seen in any of the movies.
It sounded like nathan lane and ernie sabella voiced timon and pumbaa. I couldn't tell if it was cam clarke or broderick who voiced simba.
Also it sounded a lot like james earl jones with new lines before the circle of life played.