With the change to LNC we would lose the following GLA abilities:

Convalescence (legit ability that i use often, however if they change the healing +20% towards Defiance and not dependant on stacks then i think it's a fair tradeoff)

Flash: this would kinda hurt for just initial of fights/pulls where theres a bunch of mobs or those retarded dps that go hurr durr all out mode before i even whip out my weapon, but after you line em up for overpower theres no need for this unless you are sleeping mobs for some reason.

Provoke: if they change holmgang to the above then it would alright to lose this.

Awareness: ok'ish/meh ability from the looks of it

Savage Blade: lol really.... waste of ability slot which could have been something more useful like rampart. The same for PLD, why would they give PLD Skull Sunder... waste of an ability slot. C'mon SE...