FS2000 as you mentioned, FN P90, Kel-Tec RFB although yes not a military rifle.
Lights and lasers. bullpups seem to be variable in terms of space/rails. The FS2000 for example with the optional front rail. The RFB with multiple rail system. Even the Tavor front panel looks as if it could be changed at a later date with a rail system.
Special forces: India, Azerbaijani Army, Colombian Army, Georgian Army, Philippine Marines, Ukraine. Every year the list seems to keep growing.
Seems some armies are using the bullpup for special forces even when it's not their primary rifle.
A number of countries seem to be replacing their M4/M16 service rifles with the Tavor. Also a number seem to be replacing their Kalashnikov based rifles with the Tavor. Note some of the countries. In a number of these cases we are talking about places always in conflict. Even though there were political reasons as well for Israel to develop the Tavor it's still a place in the world where the firearm has to be good. Chances are it will be tested in combat.
The Tavor is pretty much replacing the AK and in some cases the M4/M16. Give it time and the bullpup will be the primary design for centerfire firearms. It's weaknesses are being addressed and the benefits are great.
The HK416, SCAR, ACR etc are stop gap rifles. As more and more of the bullpup weaknesses disappear and as the old guard is replaced the acceptance of the bullpup will gain in popularity. The writing is clearly on the wall. The M4/M16 will hold out for a while longer, especially since the US is pretty much in a depression. Look back on this in 10 years when the recession/depression is over and the US haven't been in armed conflict for an extended period of time. When they rearm it will only be with something that truly offers a lot more than the M4/M16. The bullpup is really the only way to achieve another jump up while remaining with current powder based projectiles, anything else is just an incremental upgrade.
one more observation. What I'm seeing with the Tavor reminds me of when the Canadian military went from the FN FAL to the C7. Many of the guys I know from the military didn't want to change and still consider the FN a better firearm. The younger generation would think they were nuts. 5-10 years we will be in for the same thing. I'm betting it will be a bullpup.
I would still love to see a reliability test.