Depends. There’s plenty of depth already just in trying to figure out chassis tuning. Could even argue that 1 man’s engine jetting “depth” is another’s high maintenance hassle. How many people avoid diving in because they don’t want to deal with the “black art” of jetting &/or worrying about their motor grenading? I created a thread about applying the Smart Carb to a KZ engine for my KZ-ES that would essentially yield EFI style performance in a carburetor package. Is that a “bad” thing? Doubt. Improvement comes in many forms. Imagine having more time freed up to dial your chassis & getting on the track & not having to worry about your engine’s performance & reliability. Imagine how shallow this sport will become if it ever goes EV…
Not happening. The Big 4 derive most of their revenue from selling parts, as opposed to unit sales. Honda in particular pushed the FIM to migrate to 4 strokes because the GP class was a uniquely exotic “race circus” like F1, & there’s a greater degree of product equivalency with the 4 stroke bikes to enhance showroom sales (& by extension, parts). The Bimota V Due was the potential nexus for 2 stroke street bikes, but it was plagued with problems related to the electronic DEFI that gave the concept a bad rep, & after they went back to carburetion to resolve it, the legal EFI 2 stroke street bike concept withered. I’ve heard that the core problem turned out to be bad case sealing & not the actual fuel mapping, but done is done. A 2 stroke V-4 sport bike with counter rotating cranks would’ve been cool, though. As it stands, the sport bike market in general looks to becoming a dwindling niche, especially since the 600’s died off.