Board Thread:Theories Discussion/@comment-13239544-20130923082302/@comment-16456175-20130924040327

MotHY specifically stated that it's unrelated to EC (of which I'm not 100% convinced). He also said that SToT is for a new series he's starting (how dare he). You can see a few points in the song which will become relevant to the new series.

For example: The ugly god (duh), the four silhouettes (each with a unique color of flame preceding it, suspicious), the blatantly obvious flyby of a bunch of character portraits after said silhouettes, etc.