Bit of analysis of the trailer. They are showcasing playing the maps in conquest mode.
Freeze at 0:56 and you can see gulf of Oman.
There are 7 capture points, and the mini map clearly shows a row of 4 capture points on the beach, and a further 3 behind. So the full 64 player Gulf of Oman
Freezeframe at 0:40 and we can see Strike At Karkand
This also has 7 capture points, and appears to be somewhere in-between the 32 player and 64 player version of the BF2 map. The 32 player version had 1 capture point the other side of the river at the factory. This appears to have 2. The 64 player version had 4 capture points over the river, and very few servers actually played this version, most opting for the 32 player one. So i think this is a nice compromise between the two.
Freeze frame at 0:26 and we can see Wake. With 5 capture points, so exactly the same as in the BF1942 and BF1943 version i suspect.
Freeze frame at 1:16 we can see Sharqui peninsula. Interesting thing is here we can clearly see capture points A,B,C,D,E,F & G
The 64 player version of Sharqui only ever had 6 capture points. So they've added an extra one by the look of it, same as with Strike at Karkand 32 player.