User blog comment:Black Snowflake/New "Old S4" song?/@comment-30379300-20170325172845/@comment-29752621-20170325221927

There's always a chance, but I don't think it'll be for new S4 if they featured the old one for the picture; otherwise, it would have made more sense to put the announcement out at a later time. Also, the current S4 only have Episode Solo... The old units in Photokatsu are getting new songs, like Tristar, so it would be weird to skip and make a song for the new S4, that don't have their own regular song, rather than the old S4, with only one song, and likely aren't going to be too prevalent in season 2.