Id love to see that what you stated arrowsky, but some more stuff that might not be bad. A decrease in different maps in the official server would be a good addition. Instead of having 3 different maps only having 2. A change of lighting on V1 would also be good. It is very redish. As recommendation this lighting could be used :
Adding different terrain, textures and plants would be a cool thing to see on V1. On top of that making the new high end melees one hit to zombies. Otherwise there is no use for them. Other than that I cant wait for the survival content within the next patch.