From the source:
"It’s no secret – especially if you’ve been reading this here blog – that SUPERMAN: EARTH ONE has press and fans alike talking about it. In fact, the book debuted at #1 on THE NEW YORK TIMES bestseller list for graphic novels.
So, it shouldn’t come as any surprise that the creative team behind SUPERMAN: EARTH ONE will be reuniting for a sequel.
It’s too early to talk art, story or release date"
So what, you waited a week, maybe 2, to get enough sales and press attention and you decide to do a sequel with NO thought as to the content of it? That strikes me as mercenary and to be honest, just a bit crap.