i think this is a rather interesting topic. unfortunately i think ofp2 will not incorporate a full blown naval simulation. though i would be happy about an aircraft carrier - just to use it in cutscenes.
but after all carriers, their escorts and other large surface vessels would stay far off coastal waters, even while providing operations for ground troops. what ofp2 definitly needs (imho) are landing craft, assault boats, patrol boats and amphibs. in ofp there only was the m113 (for nato forces) and though hat vehicle family has amphibious qualities, they are designed for water ostacles like rivers and lakes, not for usmc style beach assaults.
just my two cents