i don't think that ea will give the game away. they'll let the game die and keep the source/software by themself. i know it's hard, but why should they do that? at first they have to develop a pc-version of the server software. who will do that? the community? for this u need the source and enough programmers. i've played bf in from the beginning and loved to play it, but i don't see any future for the game :(
...but of course i hope that we'll find a way :)