I'm not sure what info you've seen on the 140RX but as mentioned above, it has internal solenoids and the new V10 ECU and pump. That means one fuel pipe and one cable to the engine to simplify installation. It is a replacement for the P120.

I have nothing to back up my thoughts but, if I was them, I would be looking at doing the same to the other engines. I wouldn't be surprised if a 160RX turns up soon too.

This isn't the best link, but it's the only one I could find at the moment.

http://www.rc-warbirds.com/blog.php/tag/jetcat/