Well, if there havn't been any details on Battlefield 1943 demo, we have got some more details regarding the game. You won't be getting this game on a CD. Battlefield 1943 will be download only game. This means you can get Battlefield 1943 download digitally only with no retail version being available on the disk.
For XBox 360, Battlefield 1943 download will be over XBLM, while for PlayStation 3, digital download will be provided through PSN. Company hasn't yet undisclosed digital service for Battlefield 1943 PC download. Possibly it will be Steam and/or Direct 2 Drive. EA can also look for newly started digital PC games download service by Amazon.
Gustav Halling also talked about game content and design. He confirmed about no unlocks to be made in the game. He also talked about adding 24 players servers instead of 64 players which remains partially filled. Big relief for the gamers was that Battlefield 1943 is download only game with no browser based support.
All these things have been mentioned by DICE designer Gustav Halling on his personal blog where he has mentioned full Q&A for the game. Complete Q&A can be found on his personal blog.