Video of the full Wondrous Journeys test last night, shot from the esplanade. They move closer to the main gate a few minutes into the video and you can hear a lot of the soundtrack. You can hear enough that this could be considered "spoilers" probably!
Edit: Adding my opinion, I think it looks and sounds great from what we can hear. I know some people were ambivalent on the Wondrous Journeys theme but you can hear it during the finale here and I think it fits well. Also Disney seems to have learned their lesson about trying to get away with a wimpy finale like they did with the original version of Enchantment at WDW.