With Unai Emery’s still yet to be announced a month and a half after the start of the season, Rob Holding has confirmed the players voted on the issue recently.

Arsenal fans expected the new captains to be named ahead of the new season after the departures of Petr Cech and Aaron Ramsey. Laurent Koscielny and Nacho Monreal followed them out to take two more potential captains away, but no one was appointed in their place.
Unai Emery insisted the matter would be decided once the transfer window was closed, but it wasn’t. Then he said on September 13th that he would decide ‘next week’, but again, nothing happened.
Most recently, he said the captaincy would be announced after the match on Tuesday, but we’re still waiting.
It appears there has been at least some progress though, with Rob Holding confirming a player vote on the issue:
“We had a vote the other week so we’ll see what happens and see who gets named,” Holding said. “[We had to] write names down and then give them to the manager. He will go through them obviously with his input and then we’ll see what happens.
“I don’t know [when the decision will be announced]. I think it will be in the next couple of days, or weeks. I have no idea. If I get it, then I’ll be more than happy and honoured to do it.”

It’s not clear why there’s been such a long delay, and why Emery can’t stick to the deadlines he’s setting himself.
At this point, I think most Arsenal fans would rather just hear that the decision won’t be made until November than have the head coach claim it’s going to be ‘next week’ every week. It’s the unnecessary uncertainty that’s creating a problem.