The Korean Ratings Board lists Assassin's Creed: Ezio Collection for PS4 and Xbox One, which would presumably bundle together AC2, Brotherhood, and Revelations.
At one point, Ubisoft's Assassin's Creed series was a juggernaut franchise for the publisher, consistently earning strong reviews and impressive sales. Recent years haven't been quite as kind to Assassin's Creed, however, with Unity criticized for being a buggy mess, and Syndicate not selling as well as its predecessors. Apparently yearning to relive the franchise's glory days, it appears as though Ubisoft is getting ready to bring three of the most popular Assassin's Creed games to current-gen consoles.
This is according to the Korean Ratings Board, which has a listing for the unannounced Assassin's Creed: Ezio Collection. Presumably, this collection would be similar to the Ezio Trilogy available on PS3 and Xbox 360, and will bundle together the three Assassin's Creed adventures staring Ezio Auditore da Firenze, arguably the most well-received protagonist in series history. If that's the case, fans can expect to see Assassin's Creed II, Brotherhood, and Revelations on PS4 and Xbox One in Assassin's Creed: Ezio Collection at some point in the near future.
Having all three games available on new-gen consoles would allow gamers to experience most of Ezio's story, but even with those three games, his tale wouldn't be quite complete. Ubisoft also created a short film called Assassin's Creed Embers, which served as a proper conclusion to Ezio's story, and it would make sense for that to be included in the Ezio Collection as well.
If Assassin's Creed: Ezio Collection does exist, it will be interesting to see if it features any enhancements. For example, it could improve the graphics of the games, and clean up any lingering technical issues. On the other hand, it could also remove some features. Some remasters of seventh generation games have abandoned multiplayer modes (look at Uncharted: The Nathan Drake Collection or BioShock: The Collection for examples), so the versions of Brotherhood and Revelations in the Ezio Collection may be single player experiences.
Of course, that's just speculation at this time. Until Ubisoft gives an official announcement, we can't say for certain that the collection even exists, let alone what it may entail. However, the Korean Ratings Board leaks tend to be accurate when it comes to outing the existence of games, so don't be surprised to see an announcement from Ubisoft soon.
Ubisoft previously stated that it would be breaking away from Assassin's Creed's annual release schedule, but if the Ezio Collection exists, it and the Michael Fassbender film adaptation should do a good job of filling the gap this year.
Assassin's Creed: Ezio Collection is rumored to be in development for PS4 and Xbox One.