Yes, that's definitely the plan, to make the REST test suite more like the HotRod or Memcached test suite (and to allow more than one REST endpoint in the same web app).

The question is whether to do it now (and delay adding your test because of it), or to just create a JIRA for future refactoring. Do you feel it would be easy enough to do now? I won't complain about having to review 10x changed lines if you're ok with it ;)