This world doesn't come to pass since Flash goes back in time earlier than expected. Also, we've seen Supes get brainwashed in comics quite a few times. Hell, even a low level villain like Poison Ivy did it in the Hush storyline. You think Darkseid can't do it? What if Darkseid brainwashed Supes into believing Lois is dead because of Bats? We don't need the INJUSTICE storyline for any of that. Besides, the dream sequences did far more foretelling the arrival of Darkseid than showing the INJUSTICE world. The OMEGA symbol, the Parademons, the fire pits, and Lex Jr screaming about "he's coming". Those all point to Darkseid not INJUSTICE. I believe Lois is alive and she's going to be the key to breaking Darkseid's control over Supes somehow. Either way, the dream sequences do far more to signal the arrival of Darkseid than laying the groundwork for INJUSTICE IMO. Darkseid plays no role in the INJUSTICE story line anyway. That's why I don't think we'll be seeing it. Time will tell though.