Is it known when combat achievement diaries will be released?
Arcane has done a lot of work on it so far but I've only just now joining the project and we're started delving into the task design process which is probably the single most important thing for the success and enjoyment of the update. Once we're happy with the list we then need to implement all of them but until we've got a list it's hard to say how long that will take.
After they're all implemented, we'll need time to get them through QA and also to playtest them ourselves just to confirm the difficulty being appropriate to the tier we expect them to be.
So TLDR; it's not coming this week or the week after, at least a month but how much longer after that is still up in the air and we don't want to promise a release date until we're 100% confident in it!