Are there many people out there who have tried this on Beta? Obviously, not many people would choose Elf as a barbarian, however the elf does get the +2 falchion enhancment, and now that weapon speed is fixed they should do some pretty decent damage.
Certainly, I think the other races have better features which make a typical good barbarian, i.e.:
Dwarf: lots of Con/hp, tactics enhancments, axe enhancements, good saves/balance
WF: lots of Con/hp, tactics enhancments, PA enhancments, good immunities (esp immunity to exhaustion)
Human: human stat versatility, healing amp
I'm pretty sure that most people will continue to choose mostly one of the above races for barbarians, and Elves will continue to be a rarity even given the mod 9 changes. There just doesn't seem to be enough advantage for going elf to compete with the other races. The improved crit effects from falchion might be nice, but things like radience aren't adding a tonne of damage unless you are a halfling. And you are better off with twf for things like stat damaging.
Anyways, I rolled one up just to be a contrarian (and partially because I had been collecting falchions for the last couple of months anyways and needed to use them somewhere). If anyone has some experiences with an elven barb, I would like to hear about it.