Fission Putters -- might be fun but not sure there is a real need especially with Ions/Anodes in the 150s.
Electron Drivers -- there already is the Electron Volt that is pretty versatile. Yeah, maybe a couple more but the Electron Volt hasn't been a great seller for them. They do beat in really fast.
Eclipse -- these just don't seem to sell. The price point is also a few dollars more and I think that many small pro-shops just don't carry it so inventory sits. Yeah, Eclipse is a bit more stable than most of the other plastics so it would be nice but I just don't see it.
Soft Neutron -- I agree. I wish there were more in this plastic but to be quite honest, most new Neutron is closer to soft than OG Neutron that was hard as bricks. Plasma is also closer to Soft Neutron, depending on color.
What they need to get out are more mids, especially US mids. Since last year's announcement all we have had is the Reactor, which is good, but way too much overlap with the Matrix. A Theory/Vertex replacement needs to be out soon.