FinalWriter....
The developer of FinalWriter, and owner of SoftWood, is now doing softcore porn. Further, he set the price pretty high for FinalWriter, so it would be financially difficult to acquire the rights.
WordsWorth was created by Digita, who is now running some sort of online commerce/banking system in the UK.
Of the two, I would suspect that WW would be the easiest to get back. I seem to remember some third party company getting the rights to FW (temporarily/permanantly?) to do a windows port and an amiga CD called "FinalOffice". I'm not sure how the pieces fell for FW after that. Since it seems pretty clear that Digita still has the rights to WW, it may be the easiest to get back.
There is some sort of office system that is being ported to AOS4/MOS. Not sure of the particulars. Also, there is a team working on OpenOffice; however, I don't know about their progress.