Simply, to take Lemnos and Agios Efstratios, find the distance between them, take the ratio by which Altis was downsized, do the same to the distance, and stick Stratis and Altis on the same terrain with that exact distance between them.
It would be wonderful for Jet gameplay, seeing as every map in the game is far too claustrophobic for Air Superiority jets to compete for more than a few minutes after takeoff, and most aircraft (such as the A-164) cannot land and rearm using the Carrier as it is, reducing it's effectiveness and forcing it to be NATO-exclusive.
(Admittedly I have no clue how hard this would actually be, but I'd like it and so here's a request.)