I'd wager that my contention that the SE corridor is 'invisible' and the SW is not + a huge employment engine at NAS JAX will more then compensate for JTA/FDOT's studies when the numbers are revealed.
Add that in time, the State is probably going to end up owning the entire 'A' line from Jacksonville Terminal to Tampa Union Station (if not St. Pete itself) and you get a whole shelf of possibilities for passenger service. Depending on 'Who's on First' in Tallahassee it is probably just a matter of time until we see our own version of 'Cal-Train,' 'NCDOT Amtrak' or 'Amtrak California,' right here in our back yard. The trouble I see is that Jacksonville is worse then the proverbial sleeping giant, Jacksonville is comatose. The hub, the maintenance facilities and the key to the system will end up in Orlando and we'll end up at the end of the lightest density extension.
That said there is also a huge opportunity for such a system to pick up the old Seaboard-Cross-Florida-Shortline running from Tampa to Bartow to West Lake Wales where it connected with the mainline through Sebring to West Palm Beach and Miami. It is missing the track on the eastern most end but such a short replacement and rehabilitation of the route would give us that Tampa-Miami HSR speed without the need for HSR speeds.