Is VIXX RAVI teasing for a mixtape or VIXX LR comeback?

The instagram link is the video of the song sneak peek? maybe?
https://www.instagram.com/p/_oWXnySA1w/

Is VIXX RAVI teasing for a mixtape or VIXX LR comeback? What do you guys think? or its just him being random again, just sharing his stuff?


Source: https://www.instagram.com/rravii0215/