Glee Season 5 Spoiler: Season Premiere Theme Episode?

Glee Season 5 Spoiler: Season Premiere Theme Episode?

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My Gleeks, I don't know about you, but I certainly found our season 4 ending to be full of tears and surprises: Heather Morris/Brittany leaving the cast full time; Blake Jenner's new character, Ryder possibly leaving glee club (but not the show) next season; his catfishing perpetrator revealed to be Alex Newell's Wade/Unique.... Jeez, could Mr. Ryan Murphy have dumped any more wonderfully gut-wrenching plot developments in this year's finale?

Needless to say, we're all already thinking about next season - season 5. Well, Michael Ausiello of TVLine has some early possible scoopage for us:

Question: Anything on Glee Season 5? —Gerald
Ausiello:
"Only a rumor that the first two episodes will share a common (and potentially very cool) theme."

So both the Glee season 5 premiere episode and episode 2 could be themed episodes in common - and could be "very cool" themes at that. Think it's for a particular music artist, or will the Schuester be dipping into his never-ending pool of themes again next season?