Greetings to those following this thread. A lot of people have wondered why The Print Shop was not upgraded before the change to 64 byte architecture. My guess, and it's only a guess, is the delay has been caused by two different issues. One, the ownership of The Print Shop has been convoluted and recently changed. Originally produced by Broderbund, that company eventually morphed into The Learning Company. While The Learning Company remained in charge of The Print Shop software, that company was subsequently sold to Softkey (1995) and that company sold to Mattel (1998). Mattel sold The Learning Company (that still owned The Print Shop) to Riverdeep Interactive Learning (2001). Riverdeep merged with Houghton Mifflin in 2006, which was renamed Houghton Mifflin Harcourt in 2007. In April 2018, The Learning Company was folded into Houghton Mifflin Harcourt. I'm guessing that " folding" probably exacerbated the lack of software development.
In addition to Broderbund being mentioned on the box, there is a second company listed on the box named Software MacKiev. The main headquarters of Software MacKiev is in Kiev, Ukraine -- a company located in an unstable part of the world right now. According to their website, Software MacKiev is an award-winning developer and publisher of premium quality software including Family Tree Maker®, KID PIX®, The Print Shop®, Hyperstudio and more). I mention this because MacKiev just released a major upgrade to its Family Tree Maker software. Family Tree Maker is available for both PC's and Macs. The new Mac version is advertised as "Catalina ready." I'm guessing that whoever actually codes the software has been busy getting Family Tree Maker ready for publication and put The Print Shop for Mac on the "back burner" (because The Print Shop for PC's doesn't need an upgrade). I'm also guessing (hoping) that they have now turned their attention to The Print Shop for Mac -- there are a LOT of Mac users of their software and they wouldn't ignore such a large group.
I realize that this is ALL speculation on my part and I apologize if any/all of it is incorrect.