With Glee Season 4 resuming Thursday, and then airing new episodes straight through to the finale, creator Ryan Murphy has been busy on Twitter, giving fans an idea of what's to come.

Or who's to come, to be more specific.

Earlier today, Murphy released a photo of alums Mercedes (Amber Riley) and Mike (Harry Shum Jr.) sharing a nice moment with Kurt and Blaine (Chris Colfer and Darren Criss). The image follows a pair of other Tweeted pics that reveal two more impending returns.

Check all three out below:

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Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.