As you Know Stratis and Altis are real places in Europe not far from Greece.(if you dont , Go on Google Maps and copy and paste this into the google maps search : 39.533571,24.999794 and scroll out a bit and you'll see both maps) The place is actually called Limnos.
My Idea is , once Stratis and Altis are completed , I think it would be a very Amazing Idea. Think about it this way : You already have the Distance in water, i have flown out with the helicopter up to 35km before i got bored and re-spawned so you have the water distance. All you need is to Add them on the same "world map" in-game and make the game very very realistic !
Also perhaps it could be a Choice of Game , Ether Altis , Stratis or Full map for people who don't want to the full map. It will also Aid in Fix Wing Pilots when they come out , Planes like Cargo Planes and Para-dropping and Bombing runs would be more realistic and useful if you would have to fly across the sea to get to the other Island to Say .... Drop off a Special Tank that can only be found on Altis or only be found on stratis , ect.
Also to Aid realism , this kind of servers could be up to 100-200 players. It is possible because i used to play a game on the PS3 called MAG and it had 256 players on 1 map and null to zero lag. think about how Realistic that would be ! 200 people battling it out , Pilots wont complain about space any more , the possibilities are endless !