Be nice to have addons that give mob weakness, distance ect.

A DPS meter other then yourself is not productive. THis game (including how it is in alpha) won't work well with a dps meter trying to tally other players (eve nthe best ones is not 100% accurate). What you will end up with is idiots who try to spam damage to be top dog in DPS, and neglect their duties, whipping the party, and missing timing to link special finishers. You will end up making enemies fast.

Other addons for farming, perhaps, but those are built in and unlock with ability levels.

Self DPS, maybe, but even that will lead to players not doing tasks. It fien to test out build gear, but limited.