The negotiation for service along the FECR line would actually be with Brightline and the jointly owned Florida Dispatching Company, rather than with FECR. FECR just handles freight, not passenger. Brightline has first right of refusal on all passenger service on the joint FECR and Brightline infrastructure in Florida.
It should be noted thought that FECR completely misses one of the largest passenger market in Florida, which is Orlando. Orlando market is about twice the size of the Miami market if one is to believe the 2021 ridership number, and of course Orlando and Kissimmee together is even larger. And some of that Miami ridership is actually from Orlando and Tampa (Tampa has about 150% of Miami's ridership overall). You ignore Central Florida at your own peril. I don't think a Meteor or Star running exclusively along the East Coast will fly. And I live on the East Coast.
Ok, you have to add Dade, Broward, Palm Beach, Martin, St. Lucie, Indian River, Brevard, Volusia, Flager and St. John's Counties population which equals 8, 600,017. Now let's add the other counties on the Jacksonville-Tampa/ St. Petersburg route. Seminole, Orange, Osceola, Polk, Hillsborough and Pinellas that equal 4,501,190. Ok, it may ignore parts of others, but the east coast counties that would be served by an FEC, call it what you want, routing have almost 4.1 million more people. I will grant that Orlando, in today's market, is a huge tourist venue due to the theme parks.
Any use of the FEC, or whatever they care to call it, would entail a discharge or pickup only status south of a stop in Daytona as Brightline certainly is not going to allow Amtrak to take away any local traffic on that protion of the route. Let's see what the study comes up with and my population figures are based on 2023 estimates from
Population of Counties in Florida (2023). In any event, this state needs more trains.