Not comparing an Alpha to a G4, my simple statement is cat is in an old chassis designed to fit both the 4 stroke and 2 stroke power plants, you don't think they can easily improve on that ? It's why Cats are the easiest sleds to drop weight on. Don't fix what isn't broken ? Then you wouldn't have the Alpha skid. I'm looking forward to what Cat comes out with.
Can it be improved? Yeah, it can. But they are spending the limited R&D dollars where it counts most and having arguably the best sled on the mountain 2 years running now ('18 & '19) shows that. The chassis isn't holding the sled back nor is it where everyone is dropping weight off of that sled. Can't say I've heard of many people chopping up the chassis to drop weight. They needed to fix their clutches, narrow it up, redesign the plastics, lighten it up, and then come out with something revolutionary. Changing the chassis wouldn't make it a game changer. It would just change it for the sake of changing it. Maybe they do a chassis change next that is built specifically for that mono rail skid...smaller, lighter, narrower...even closer to a bike???
Chassis would still be below the following changes in my book. I haven't spent enough time on the '19 to really critique everything, but based on what I did see:
-intake design (weight)
-headlight design (weight)
-steering post mounting and design (less slop)
-gauge pod design and mounting (could be cleaner with better fit and finish)
-running boards (maybe chassis related, but bet you wouldn't consider it a new chassis if they changed boards so I'll keep this here)
-snow flap??
-colors
-strengthen up the tierods slightly
-strengthen up the rear tunnel slightly