I don't play much XI anymore, but I always keep an ear to the tracks. Found this PocketGamer article today with a single line about FFXI Mobile.
2017 will also see Nexon launch Lego Quest and Collect and Final Fantasy XI on mobile, which have the potential to be very big releases for the company.
Not sure if the writer is making an assumption, or if there's a line about that in Nexon's Q4 reports, which is the basis of this article. Still, that's the first media mention of the XI mobile version I've seen in months, so figured I'd pass it along here in case others had more intel.