The Castlevania Advance Collection that we heard about in June appears to be coming to the PS4, Switch, Xbox One, and PC as it was rated for all of those platforms recently in Taiwan.
Also we now know what games will be included. As expected, all 3 Castlevania GBA games will be in the compilation along with a 4th game, Castlevania: Dracula X of the SNES. Play Asia, a Japanese retailer accidentally listed the game on their site for a little while before removing. An Art Gallery, along with the rewind feature also found in Castlevania Anniversary Collection will be part of the Advance Collection. It is possible that an official announcement of the release of Castlevania Advance Collection can be coming within 24 hours on the Nintendo Direct Broadcast. Stay tuned for more details of this exciting compilation as they are revealed.
Here is a list of all the games known to be part of Castlevania Advance Collection:
Castlevania: Circle of the Moon GBA (2001)
Castlevania: Harmony of Dissonance GBA (2002)
Castlevania: Aria of Sorrow GBA (2003)
Castlevania: Dracula X SNES (1995)