I love seeing the community make reference guides like this!
It's wonderful to see how squad formation has become more accessible, and we're not done yet! Proliferating support roles- and boon availability- across more professions creates more flexible squad compositions, makes it easier to join a group and be able to contribute on the profession you prefer to play, and raises the floor by helping more groups get the essential power boost from boons with less complex organizational overhead.
Look forward to more incremental steps with every profession update! As I've previously mentioned in a blog on our website, Warrior Banners and Ranger Spirits will be overhauled this summer. That'll be in our professions update on June 28th!
Banners will allow Warriors to opt into a quickness support role, while Spirits will allow Rangers to opt into Alacrity coverage.
I've seen mentions in the comments here and elsewhere that it's become more important to watch out for Might and Fury coverage. That's been on my mind since we were wrapping up EoD specs, too. The summer professions update on June 28 will also expand access to sharable 5-target Might and Fury in incremental amounts among more traditionally 'DPS' roles. I've said before that no profession or build should be completely selfish, and mean it!
Guild Wars 2 is about being stronger together; and a lot of that is expressed by how boons are granted to allies near you as you use your skills in normal play. Ideally we get to a world where you never have to worry about Might and Fury while with allies because when you put enough people together it just happens!
This kind of thing comes in incremental steps, and we can never do as much all at once as we'd want to, but that means that there's more to look forward to in the future. (I know I'm always thrilled about it!)