Phoenix Strike for instant reposition, Blitz Attack is essentially a ranged attack with repositioning, Battering Ram for reposition with CC as an added bonus, Battle Stomp is essentially a ranged AOE attack with CC to boot, Crippling Blow as AOE to make sure you don't need to chase.
All of these skills provide the required mobility and the fact that they do damage AND CC to boot makes them insane. I hardly ever needed to use my AP for moving and this was usually at the end of a fight to pick off stragglers. AP is obviously much more valuable in the beginning of a fight than at the end.
Add in Attack of Opportunity often finishing off enemies before they can get away. Just nutty. By contrast, I would say that my Ranger was spending more AP walking to reposition because of line of sight issues (even with a proper pre-fight setup).
My Rogue in an earlier playthrough was spending more AP to reposition for backstabs. So I do disagree that a warrior needs anything other than Warfare for mobility.
Dunno what to tell you. Rogues can use all of the same mobility skills that a Warrior can, but on top of that they not only get Cloak and Dagger earlier than Warfare gets Phoenix Dive (moot point if you simply dump two into Scoundrel with the Warrior, but early on it's harder to justify) and they start with Backlash, which is dagger only. That's 1 AP for moving 8m as as well as it giving you a backstab.
Warriors do not have anything remotely as efficient aside from hitting a row with Battle Stomp. Blitz is only really comparable when you hit more than a single enemy. Otherwise, it's effectively half as efficient for the same damage (less in the case of a Rogue). Battering Ram is
okay, and if nothing else at least better to use for moving around than simply walking for a while. Barely. Also, Warriors had absolutely nothing comparable to Backlash > Rutpture Tendons > Chicken. Nothing. That's been nerfed now, and I haven't tried it out to see how much of a difference it makes, but from the point you could use that previously, it took out any non boss in one turn without fail. Later on it became less useful, since other options unlocked that allowed you to simply kill them directly on that turn, but it was still one of the most broken combos in the game.
I don't understand why you would be having so many line of sight issues with the Ranger either, when not only do they technically have just as many mobility options, they also need to move less overall most of the time. Warriors in general suffer an AP tax on everything they do, which makes them the most inefficient physical class until late game.
Casters don't need a bunch of extra pseudo movement skills from Warfare similarly to why Rangers don't. Early on is the worst for them in that regard, but eventually they can have both Tactical Retreat and Cloak and Dagger, although grabbing more than one is hard to justify due to memory slots. You really cannot afford to invest in MEM with a caster you want to deal damage with. It's all INT and then WIT.
Also, until it gets hotfixed, enjoy the new and grossly overpowered Reactive Shot. It was supposed to work like the Overwatch skill from XCOM and Shadowrun, but almost never did anything. Now it basically kills anything you target for 2AP on top of killing whatever moves inside the area on the next turn.