Honestly, I would consider the two big winners for that week to be Snow White and Innerspace. While not directly marketed to children, I'd think that Superman would be considered the family choice among new releases for the next few weeks. I can see Innerspace creeping up a spot or two on the chart, and Snow White would likely lessen the gap between it and Robocop without catching it, and everything else gets a slight bump up. The week after, I figure the largest chunk just gets hoovered into The Living Daylights.
I think the big impact on the box office happens two weeks later, with
a title that Cannon becomes more reliant on doing better, possibly getting more of a marketing push, and doesn't have the very real reminder of "Oh yeah, Cannon = low budget" that they did in this time line. Poor suckers, dodging Mark Pillow just to run into Dolph.