So here is my 2 cents on the discussion over design change and some of the confusion all these new mule photos create.
I do not expect Tesla to crush all the mules built so far. Why would they? They have sure produced 20-30 or even more mules over the past 2 years (and especially lately). Some of them represented an earlier design revision, others had hand built parts and parts borrowed from the Model S just so they can test. Hell, the very first X test mule was probably an S with added weight and AWD.
The point is, all these mules are still around, used for durability testing, SW and Autopilot HW testing, etc. some of them have older headlights, barely fitting doors and bolted on rear spoilers (maybe not even functional just for aerodynamics/range testing). We are seeing all of them mixed in these posts, so even if we see a brand new photo and the doors are not fully closing, the headlights are different, etc. that does not mean anything for the production schedule.
As for final design, I too agree Mr. Blue is probably the latest (final?) revision and I very much like what I see. I think the concept rendering was beautiful, the first SUV i actually liked and would be proud of owning. I really hope that some of the more whaleish mules out there only look like that for reasons above and camera distortions plus black color + black tape and white color + white tape playing tricks on our eyes.