Don't know exactly what will happen but you'ill probably get an error/warning about a quaternion issue.
From the wiki :
static_transform_publisher x y z qx qy qz qw frame_id child_frame_id period_in_ms
Publish a static coordinate transform to tf using an x/y/z offset in meters and quaternion. The period, in milliseconds, specifies how often to send a transform. 100ms (10hz) is a good value.
So that means you would set a quaternion to (0; 0; 0; 0) which is not a correct/existing value for a quaternion.
Note : Never hesitate to try by yourself at first, I'm sure if you did that you would have directly spotted the quaternion issue ;)