I spoke to Austin (at Intuit) today & they may come up with a way to data mine the client base to see who's impacted.

MY plan (after several back-ups) print out a data base report of all clients with Sch D exposure & include the tax liability.  THEN  -  after the update implementing the new Sch D worksheet is installed  - I'm going to unlock the potentially impacted returns & reprocess them.  I'll rerun the same report & see if anything changes.  That should identify which specific clients are impacted.

Cumbersome?  Yes.   

I haven't looked at filters (not my strong suit...) to see if there may be a better way.  The chatter is that only/mainly returns with § 1250 gains are impacted.

A caveat is that for a good part of this year, there were issues with pulling client reports when returns were locked.  If that's still the case, some might get missed.   

Another possibility is change the display to show which clients had Sch D, then highlight those & print a report.

Cumbersome?  Yes.