I just finished the latest Guy Gavriel Kay book - All The Seas Of The World.
It's set in the same fictional universe as several of his past works of fantasy - the time and place of the Byzantine Empire, but an alternate world with slightly different geography and two moons. You'll recognize countries and cities and religions. If you've enjoyed Sailing To Sarantium or other books set in this universe, you'll be happy with this effort.
There are many characters and the books switches at times from the third-person omniscient POV to first person, and the first person POV varies from character to character. But it's not confusing, this switching is deftly handled by Kay.
And there's an obvious plot detail that's left unresolved, so I think there's at least one more book to come with some of the same characters from this work.
Kay and Brandon Sanderson are two of the most accomplished fantasy writers active today. However, if you haven't read anything by Kay, you probably don't want to start with this one; I suggest The Lions Of Al-Rassan as a good entry point.