What war is lacking at the moment is mobility and therefore a leap, and perhaps a stronger version of Fracture either single target or aoe like circle of scorn.
But what i would really like for war atm are skills that are getting stronger with stacks for example IB has damage reduction proportionate to defiance stacks like:
5%,10%,15%,20%,25%
And how about we get additional potency on skills or crit rate which depends on ilvl and stacks? For example i270 war gets, for example 2,70+5%=7,70% crit boost or for fell cleave 500+2,7%=513 potency.

Hopefully we get an introductory video for our skills on May.