What I want to know is what Pikachu's new "final move" is going to be. Considering how Volt Tackle was always his finisher, and then Electro Ball, Electro Web seems like the logical progression, but that seems more of a Counter-Shield defensive type move rather than a "hit them with all we've got, let's finish this now!!" type move. It could just end up being a Z-Move (either Gigavolt Havoc or 10,000 Volt T-Bolt), which I think is more likely than Thunderbolt, but I also kind of think that it reduces the uniqueness of the cases where Ash uses the Z-Moves, not to mention that it wouldn't be able to happen when his other Pokemon use their Z-Moves.
Just give us Volt Tackle back, PLEASE!