Whatever Steve does, and I'll reiterate, is going to be a macho theme with SPEED! Loops galore, reflex shots, kickass music!
I have an idea to add some "fireworks" to whatever is made: Add spark emitting mechs, ala 80's toy cars that had a flint and steel in them to make actual sparks when the wheels turned.
The sparks could be emitted into a clear tube, or something similar, that exits to below the playfield into a catch container, as to not litter the playfield with the spent debris. The end user could easily change the flints as they wear out, just as they would in a zippo lighter.
I suppose what I am proposing is the purpose of flash bulbs (another first for Steve to incorporate into a game), but how cool would it be to have genuine sparks being shot out as the ball rips around the playfield, or as a mini "fireworks show" when a super jackpot is hit?
I'm probably dreaming, but from an engineering and cost standpoint, it doesn't seem that crazy.