+10 A!Azura?

3.0 update probably?

She will most likely be added after the TT after the Adrift TT, with Adrift adding H.Dorcas

Too early to tell. We don't know how many grails will be made available via quests and rewards from other modes

I'd say give it a month or so after she's added. The list has Garon as the most recent, and he was available since late September.