I betatested this mod, and I can say it will be worth it. Don't expect at least 20 maps though. However, they'll get there eventually.
Compared to FH1 it is more realistic, and unlike in BF2 you can't be revived, you die like in 1942.
Just played a bit, I've enjoyed it so far. But there still seems to be lag at points, not as bad as the previous version however.
Update: Servers with 32 players seem to run smooth even with vehicles.