What I would love to see for T&L is for the Amp bf3 to be multi functional, so you could L2 amp for a defensive safe low that doesn't launch, or standard Amp for an unsafe overhead launcher.
Similarly, perhaps you could do the same with db4, so you could either L2 amp for a safe staff plant where Raiden teleports away from the opponent but leaves the bubble in tact, or you can just use a normal Amp for the standard staff plant.
T&L just needs something, because its never going to be used outside of just for shits and giggles.
Those are interesting ideas, though I would just include a directional input with the amp to change it, like Shao Kahn's shoulder.
What I think T&L needs (other than a complete redesign) is to remove the duration of the rod plant and let players use the recall input to call the staff back to Raiden. The input already exists, but the duration of the move is already too short to do anything useful.
The drawback here is that Raiden would only be able to call the staff back manually outside of getting hit with FBs or KBs, which requires animation frames instead of allowing the staff to return on its own.
That said, I believe this change would actually allow v3 to do what seems like its intended purpose; keep away and setup.
I agree Jo Push needs significant changes as it already wasn't worth its 2 slots before getting nerfed and sure doesn't even come close to that value now. Let people appear close or far after amping on the other side, let people spend meter to make the staff plant itself into the ground as an alternate amp or something during its path.
Make it 1-slot. Add Lightning Storm to the variation (floating stance).
Let Lightning Storm's downward bolt strike interact with rod. There's plenty of cool ways to make these variation moves work.