Technically there's always an answer for everything. Since everything is govern by specific rules. Use them correctly and you can basically come up with an answer for anything
@@madhahatter I'm pretty sure that was for mugen train, it played at the end. As for season 2, it is coming out very soon, so you should probably expect the song to come out in the near future (a few weeks from now). And, yeah, this song is for SAO: Progressive: Aria of A Starless Night (jeez, what a handful haha). Nevertheless, I'm sure both songs will be very good!