RoK has changed the racial traits a bit. Not sure if this is the proper place but I will give the info anyway.
Trolls no long get the option of choosing "Resilience" (+STA).
"Swamp Breath" is now a permanent passive trait, so if you choose it, you can breathe under water forever.
"Grobb Grub" is no longer a choice, but trolls get a summon water spell for free.
"Brutal Barnishings" is now a medium damage extra attack with a knockdown.
Trolls now receive an anti-Fear spell that makes trolls immune to fear affects for 10 seconds. Not sure of it's name.
Trolls now receive a trait that gives a passive ability to make food and water last 25% longer. Not sure of it's name.
Trolls also receive a trait that gives a passive crit melee chance increase of 1%.
Trolls no longer get the option of choosing "Natural Regeneration."
Hope this info helps.