I get that Gatlin is going to build, I'm saying that there's still room for the station even with the apartment going there.
I'm confused. Where? That's wetland to the south of the apartment complex property. It would be pretty difficult to gain approval to acquire environmentally sensitive land in the back of a residential area and fill it in for a train station parking lot.
I put together this concept, but I do now see that's a wetland. In which case, I'm not sure there's still an option for JTA along that section of the corridor. Unless they build it down at Nease High or up at maybe the Gate in Bayard, I think Racetrack might be beyond saving in terms of a station.

I'd really, really, really be surprised if FDOT took over a commuter rail project on the FEC....or anywhere in Northeast Florida. Especially, FDOT District 2.
That seems to be the plan, whether it's truly doable is in Nat Ford's court, really.
Jax would be smart to include a secondary route in this study: Downtown - Murray Hill - NAS - Orange Park
The FEC has been the preferred corridor to launch commuter rail since 2013. The federal grant they're using for this study only includes these four specific stations on the FEC. My guess is that St. Augustine is considered a stronger terminal destination than Orange Park or Green Cove, plus the issues with the host railroads.
^This route likely makes more sense. Clay has traffic gridlock that the I-95 corridor will never have and there's no viable roadway based solution out there to resolve them north of Fleming Island. On the other hand, FEC appears to be much easier to work with than CSX. That's about the only reason why I can see the push to get something on the FEC up before the CSX A line.
From JTA's standpoint, there's also the issue that if you're trying to fund this as highway mitigation, there's no highway project to piggyback off of in Clay County. It might be better in terms of being able to build your ridership, but that's not meaningful if you have no avenue to fund it in the first place. Although it's certainly be nice if whatever infrastructure bill package has enough funding that can be used to turn attention to the A-Line, whether that's through getting the FEC line done or being directed into the A-Line corridor.
I spoke to some friends who also have involvement with transit, and their big question was why it sounds like JTA is planning a SunRail-style service with bilevel coaches and a locomotive instead of something more akin to TexRail with Stadler DMUs. They're also going for low-level platforms, which seems strange if there are no existing stations mandating that standard. Unless they're getting used rolling stock for steep discounts, building the foundation for future, more rapid service seemed useful.
One thing I'm also worried about is the eventual cost. I know Lake's pointed out the utility in waiting for Brightline, but assuming that doesn't happen, JTA really needs to go all-in and have in-house rail development. They already know they want to spend the next twenty years building out a rail network, so bring the people in now instead of spending millions on consultants. We've already watched the price more than double in a decade, at this rate the actual built line will be a billion dollars, before you start looking at all the CSX lines to deal with.