The real question is… Why do you need more than 8 algorithms?
I’m being a bit cheeky here, but my point is that there aren’t that many routings that are interesting - after a few combinations you will only have slight variations. (just have a look at the FS1R algorithms!)
I think the 8 algorithms each have a good reason why they exist - they all provide something clearly different from each other. They are hand picked and well thought out so to speak - not just a bunch of random combinations.
That said, I have some ideas for additions, but for now the 8 algorithms are the ones that are there, and I’m confident you will be able to spend many, many, many hours on them before you exhaust the potential.
(Please don’t see this as a confirmation for more algorithms in the future, just that it is left open at this point…)