User blog comment:OfficialBrandonF/Could Darkseid be a villain for the 4-way crossover event?/@comment-26618197-20170415194201

That would be interesting, but how would he cross into another dimension? I'm not sure if Kara would want to put her friends in danger if this guy is that dangerous, unless Cisco for some reason vibes the attack and warns the others. Or if he happens to be on the other Earth.