This new Bob Long gun is the first thing made in the last 8 years that really catches my eye.
It's not really "new" per se. But, being able to put a spool "engine" (I really hate that word) into what was designed as a poppet marker is pretty interesting.
I'm even more interested in the J4 spool. http://www.j4paintball.com/ However, as with most new companies and markers, I wonder how long the creators and the design will stick around. Will the company and marker have any staying power? Take the Vapor and ZR-1 for instance. Not alot of penetration.