The short answer is no, not really. I've seen a list of over 6000 programming languages, 5990 of which you will not have ever heard of. Guess what, TAS is not on that list. It's not on ANY list I can find. It's got to be the most obscure programming language ever used for a commercial product. I think you could find more people who know ALGOL or scheme or B or ADA than you could who know TAS.
What irks me is that as bad as TAS is I still don't know if I can really bring myself to say that they should try to port to something else. There seems to be some nasty things in the codebase that could use work first. Although, a port would be a good time to fix those things.
And it could be done a module at a time. Anyone up for some C# modules? Please, pretty please?