You probably mean repeaters; pylons are the towers.I'd like to suggest a range increase between pylons and a way to move a node? (not sure what to call them towers).
As it happens, yes, their range has been increased by 50% in v3.
What do you mean? RC already has a firework machine.I'd also like a way to just shine whatever lights I want when I want, maybe a fireworks control box of some sort? I'm sorry, but nothing say magic like a good light show.