Robert: The i3 is virtually finished now. They already have full productions versions that they are testing. The next eight months they will just be fine tuning everything and making sure it's perfect. This is such a different car ans drive system than anything they have made and sold before they need to make sure everything has been fully vetted before launch.
Conrad: The launch in still 10 months away. Automakers almost NEVER show the completed production version of a new model more than a month or two ahead of the launch. There are exceptions, one being the Chevy Volt that really put the car out there way before launch, but in virtually all other instances, the production version of a new model appears at a major auto show the year of the launch, usually a couple months before. All of the major US auto shows happen between January and May so you can bet you'll get to see the real i3 at one of them.
There is really no reason to show your hand so early. If you do, the car will be 'old news' by the time it launches. BMW knows what they are doing. They will show the real production car off right at the time they begin to really market it and build up to the launch.