With the change to LNC we would obtain the following abilities:

Feint: Make it so we can land the slow on bosses reliably (an extra reason to bring us plus the+20% slow would help with tanking)

Keen Flurry: yes plz

Invigorate: TP regen, I often find myself running short on tp when running AK, i can only imagine the tp drain on turn 4 coil from videos i've seen, so Invigorate would be welcome

Life Surge: I realize this is a LNC/DRG ability only but if they would change it so WAR could use then it can be used to guarantee an Inner Beast crit for max possible self heal when necessary