Hello,
We will definitely continue to support SALT (and JCCKit, except that JCCKit has not changed since 10 years!)
The only thing is that we are focusing on UML, and SALT is simply a small subproject/idea we had some time ago, and we do not want to spend too much time on it.
But to reassure people, we have added a link on the main page (we were not sure that anyone was using it, by the way :-) )
Regards,