Non-existent trackage on NARP/RPA's Vision Map?

[TML]

When I looked at the Vision map from NARP/RPA containing their proposed expansion routes and compared them to existing trackage from Google Maps and/or state track maps, it seems to me that one particular segment in the map - the route from Tampa south to Naples via St. Petersburg, Sarasota, Punta Gorda, and Ft. Myers - apparently no longer exists in its entirety (in other words, some of this trackage appears to have been pulled at certain points). Is it really true that any hypothetical restoration of passenger rail service from Tampa south to Ft. Myers would require re-laying some tracks previously pulled?