Emirates to expand the Srilankan

Emirates planing to expand the srilankan fleet once they nod the new contract. They are probably planing to add more destinations in Australia, Europe, Asia and Africa specially focusing on indian traffic. For them what will be the best fleet expansion plan. Is it add more airbuses and it will minimise the cost of expansion. i hope srilankan fleet will be like this:

10 A340-300;
04 A330-300;
04 A330-200;
06 A320;
03 ATR72 (to operate small indian cities).