Yeah, the whole point of EFI (electronic fuel injection) is that it changes your "jetting" (not really jetting because you no longer have a carb, injectors adjust accordingly) automagically. You don't need to change jets in a car. Once all quads are EFI, you can bolt on different sh*t and not have to worry about "jetting" any more!!
Eventually I would assume that most all new quads will come with EFI. EFI is better for emissions crap. The big race dirt bikes are now EFI, so quads will soon follow. Price tags won't be going down though.
And although EFI will be cool, no more jetting, maximized power, etc. we will be losing the best thing about our quads, KISS. All good things come to an end, right.