Rails/tracks yeah... same thing. They actually replaced a section of Hulk rail near the first inversion sometime in the past 3-4 years. In this case, the rails are infrastructure much like the Sinbad refurb going on now.
The only hint I got of further happenings was months ago in a cryptic email that said, "Say bye bye to Hulk.
".
The parkscope guys seem to have the inside info on the what and what...