I think they were bought by Corel
Edit: Serif are in the article, sorry
Serif (makers of Affinity suite) were bought by Canva last year. So far, they’ve honored their perpetual licenses and still offer them, but it seems like a perilous proposition given Canva’s audience and sales model.
Corel licensed their software for a while and released it as CorelXARA.
Cerilica (company name) Truism (product name).
There was also Composition, by a chap from New Zealand. Multiple transparent layers of any size and position, and and interesting system-wide plugin system.
EDIT: but Create was more a drawing program than page layout.
But I never heard if it ever made it to market or with what feature set.
I mean I can't really speak with authority how much that (first IIRC) version of InDesign differed from this K2 or PageMaker but I think it was working well with Photoshop and ImageReady (both of which I knew from work before).
Would probably depend on how much it was more of a v2 or how much was a complete rewrite.
There were a lot of other programs along the way, esp. if you consider platforms other than Mac OS (and later Windows).
I still think someone needs to create an office suite which just used .md and .csv and similar plain-text source files for file formats, then all design variations are done via theming --- then, when it's time to produce a document professionally, what is provided is a clear plain text file with sensible markup which is easily converted into pretty much anything.
- Calamus --- a German tool based on a document model, it was pretty interesting
- Ready-Set-Go --- this was a contender, with a quite vocal fanbase
- Microsoft Publisher --- this was just announced as development ceasing
and the cool British program which did ink mixing and took paper characteristics into account whose name I can't recall.... (and was hoping would be listed)
Kind of silly to list PageMaker, since its successor, K2 became InDesign (which was so promising, Adobe bought Aldus), and Serif Page Plus, since Serif now publishes their Publisher application (fortuitous name choice for them).