The name of the game is rumored to be Assassin's Creed: Comet. The game would take place in 1758 New York and the last appearance of Halley's Comet was in 1759. It seems as if this game does come to life the templars have some interest in the comet and I'm excited for how this game could play out given the series success at reimagining historic events with its own twist.
Because it would be a direct sequel to Assassin's Creed IV Gamers would be able to continue sailing the seven seas which has been a high point in the series past two iterations, and hopefully Ubisoft can find a way to expand further upon the gameplay and give us something new again.
The Game returning to New York is exciting news as the game would be taking place roughly around the same time of events as Assassin's Creed III. I don't think we will end up teaming with Connor, but expect to see some familiar faces. Given the rumors are true hopefully with two new Assassin's Creed projects happening at once both won't suffer, but the series consistency over the past seven years will hopefully prove otherwise.