Neil Gaiman is coming back to DC for a Sandman miniseries!
Friendship is Magic is getting it's own comicbook, published by IDW,
Books of Magic returns as a kind of spin-off from Justice League Dark,
Renee Montoya not currently coming back to the DCU, though the Question has appeared,
Clarification as to what the Joker's up to in his return in a couple of months
Rhianna Pratchett (daughter of Terry and writer of the Mirror's Edge game and comic) to be writing the upcoming Tomb Raider game, which should hopefully make it less... squimishly sexist,