Well actually it's not so much about Fyrecrypts continuing work on HiToText per se but the data file that goes along with it. Anyone can provide the data for a game to add hiscore support and there were several main contributors to this such as bLAZER, Cananas, dna disturber, NOP and Wob.
The main HiToText thread can be found here and I believe there are instructions on how to add support for more games if you're willing to give it a try.
That being said I did work on some of the early boiler plate code for HiToText but it has changed ALOT since then and I have very little time these days. Fyrecrypts has done a great job implementing the data file interpreter which makes it much easier to add games. Before that it was all hard coded in the executable and required a new compile and release for each new game added.