I believe the new Foxtrot will be Code D only because of constraints with adjacent car parking and ground issues. According to the AIP entry Echo is restricted to max B757/A321 which is at the lower end of Code D. Presumably the separation distance between the new Foxtrot and existing Delta will be sufficient to enable Code C on Foxtrot and up to Code D/E on Delta which maybe shouldn't cause to much of a problem given that the airport operates predominantly Code C aircraft.