Rune Factory 4 Best Collection is a rerelease of Rune Factory 4 being released in Japan this October: https://www.marv.jp/special/game/3ds/rf4bc/ No different than the already available Rune Factory 4, its pretty much like a game of the year kind of release. A separate Platinum Collection will also be released at the same time, which includes the Best Collection as well as Rune Factory 3 for the DS and the soundtracks for RF3&4.
While this isn't all the most exciting of news as these aren't new games at all, it should be noted for what this move signifies. Since Neverland Co., the Rune Factory series developer, filed for bankruptcy in December 2013, the series has been frozen, and fans have been wondering a lot about the future of it. Marvelous confirmed in the past that the series would continue, but so far nothing has been shared, we just know that many of the former Neverland Co. developers are now working at Marvelous. This move signifies that Marvelous doesn't want us to forget the series, they care about the series, and are proving that Rune Factory games can indeed be published without Neverland Co.
All of that is to say that, maybe we will still see a Rune Factory 5, and if we do, I sure hope they consider releasing it on the Switch
While this isn't all the most exciting of news as these aren't new games at all, it should be noted for what this move signifies. Since Neverland Co., the Rune Factory series developer, filed for bankruptcy in December 2013, the series has been frozen, and fans have been wondering a lot about the future of it. Marvelous confirmed in the past that the series would continue, but so far nothing has been shared, we just know that many of the former Neverland Co. developers are now working at Marvelous. This move signifies that Marvelous doesn't want us to forget the series, they care about the series, and are proving that Rune Factory games can indeed be published without Neverland Co.
All of that is to say that, maybe we will still see a Rune Factory 5, and if we do, I sure hope they consider releasing it on the Switch