Anyway, this is what appeared - for no reason whatsoever, it seems - on one of devs' twitter yesterday.
sebastianhanlon @hanlsp 20h
“The Chantry teaches us that it is the hubris of men which brought the Darkspawn into our world. The mages had sought to usurp Heaven.”
Maybe we'll actually learn about the actual origin of darkspawn? That would be HUGE.
I wouldn't get your hopes up too high for SP DLC just yet. There are whispers of it being MP related.
Unless you like to play MP, then by all means, hype away! 
I don't think they'd try and hype people up just for MP.
MP got quite a few sizeble DLCs and updates already, including Dragonslayer, which introduced three new classes and characters, as well as ability to kill dragons - and aside from Zither making his first public appearance at April 1st (what a brilliant move ;D Everybody though it was a joke at first!) they weren't really as overt about it being prepared or released, as they're with... well... whatever is going to be released in (hopefully) near future.