The fact that the steelbooks are well over a month away makes that comment highly suspect.

However, we did hear this very same rumor back in April the day before the digital versions became available for download, with clarification following the next day that this was actually seen by someone inside Lucasfilm and that it could still be for a future version of the movie.

I'd be shocked if these steelbooks weren't the exact same 2011 discs. It makes sense that we'd see big changes made to these movies for their dvd debut and then again for the blu-ray. Those were both huge upgrades in how people could watch the movies at home and it makes sense that GL would use those occassions to make additional changes. Also, in both cases, it had been seven years since the previous revision (which makes me wonder .... 2018?).