https://www.newsarama.com/42348-drow...direction.html
"Now, he’s at a moment in his life where I think he sees Mera doing a good job at this thing that he was always reluctant to take. And he’s searching for a new mission as Aquaman."
It seems that the Rath storyline really changed the status quo (at least for now).
New synopsis for Aquaman 44
"Aquaman no more! Still reeling from the stunning events of last issue, the onetime Sea King becomes obsessed with finding the mysterious redheaded woman from his vision. But where to even start? Don’t worry, Arthur: that mysterious redhead is looking for you, too, as Mera begins the hunt for her missing mate. Amnesiac Atlanteans, redheaded mermaids and more, all on a collision course inside the mysterious town called Unspoken Water."
From what she said about her intention for the story, I thought DeConnick wasn't going to use Mera at all. I am glad that I was wrong