You know, since they didn't have the "new" ending worked out after moving it to S:TM, I would have liked to see them tie into SR better ... especially given how much Donner loves SR.
Instead, by turning back time we're going to have Lois somehow de-pregnated, and some bully at Rocky's Diner not know why the hell this four-eyed nerd came from out of nowhere to beat him up. Blowing up the fortress will serve no point as it would have been re-built. And, whatever, the villains will have their powers back.
I'm excited as hell about this release, but turning back time at the end of SII to help Lois forget is not a good resolution to the plot.