I would like to see oidentd implemented so I can have working ident behind NAT.
You could hack that in without much trouble, it may be too specific of a need to be in a general release. The workon.sh tool may still work (though I haven't tried that on the 8.x images yet myself).
multi-wan's would be nice, but I would prefer CARP and Link Aggregation at the moment...
CARP not very useful without pfsync, which won't work with ipfilter. Could do stateless failover with just CARP but that usually defeats the purpose of having failover. The lagg support from pfSense should be reasonably easy to port over (if someone could give me 36 hours in a day, I'd love to do it...).
pfSense has no ipv6 support and I have no intentions on moving away from m0n0
Funny, I'm actually logged in here via IPv6 going through pfSense.
The IPv6 branch is solid. I do like m0n0 too though.
What I am looking forward to the most is FreeBSD 8's network stack is now threaded allowing us to run m0n0 on multi-core boxes to achieve even greater performance..
Unfortunately at this point the packet filters are still giant locked, so that largely doesn't apply to firewall scenarios. The filter is still going to be the primary bottleneck and doesn't really change much in 8.
If build system is easier to work with now I would like to see multiple architectures supported, I think some old sparc servers would make excellent routers and nobody wants em anymore.. Mebe not officially supported but easy enough I could roll out a sparc image of my own directly off software repo.
It's quite a bit of work supporting additional architectures, though if you have some FreeBSD build experience you could probably make that happen. Yeah sparc boxes are cheap up front and easy to come by, but I wouldn't bother even if they were supported - they suck a lot of power for relatively little performance, hence will really cost you over the long run. I would just get an ALIX or an Atom or similar platform, would pay for itself in electricity savings within a couple years or less depending on your power cost. ALIX is likely slower but plenty fast for a lot of uses, an Atom would be comparable if not faster and still considerably less power usage.