Ubisoft has revealed it is planning on launching up to four new video games during the period April 2019 to March 2020 (via XBA).
Speaking during its earnings call this week, the French publishing giant didn't go into any specific details, although we can safely rule out a new Assassin's Creed game; the series is taking a break this year, and while we could get one in 2020, it's unlikely to be out before March.
Skull & Bones has yet to set sail yet following its unveiling at E3 2017, so this is an obvious candidate for one of Ubisoft's upcoming triple-A releases. Watch Dogs 3 has been rumoured for a while, as has a new Splinter Cell game, so it's probably best not to rule those out just yet either.
Presumably we can expect some fresh IP to be thrown into the mix too, with E3 likely to play host to some major announcements.