I was reading a Scott Snyder interview on CBR and he seems to say Generations is either not happening or changing. This is PURELY reading between the lines and I could be off. It was no kind of announcement.
To me, It sounds like he’s saying that DiDio leaving allowed DC the chance to change course from Generations. I think I am more comfortable with Snyder having a hand in cleaning up continuity than DiDio. He does not say that’s his role. I’m guessing this could be why a 7th issue was added to Death Metal.
Again, all speculation.
https://www.cbr.com/dark-nights-death-metal-1-scott-snyder-interview/