What do you mean by "it wouldn't be a proper Tesla."? I may be wrong, but I believe that's a picture of Tesla's Model X...
At any rate, I'm really excited to see this happen. I wouldn't expect it to be actually available for purchase until 2016-17, but that should still be more than early enough to make my next car a Tesla. Fingers and toes crossed :)
(I'm not sure: the sketch may be an early sketch of the Model X, but it also may be a sketch an auto-enthusiast site commissioned. The half-baked details and the filename made me think it was something they commissioned.)
That graphic is a image of the Model X. http://www.teslamotors.com/modelx
The beltline is a mess, especially the upward kink at the A-pillar. Something unpleasant has happened to the rear, as if the rear lights arc downward into the bumper. It's hard to tell, but the hatchback seems to flatten moreso than the Model X, giving it a Malibu Maxx flair.
If it's an early sketch of Model X from a while back, I am glad Model X has improved dramatically since then.
To reiterate: articles like this should not show a sketch without a proper caption (worse yet, the filename is tesla-model-e.jpg). That's all.