And per the JT Info thread:
Frame/Suspension/Transmission/Tires (see thread)
JT Gladiator frame (205-inches) approximately 18% (33-inches) longer than the 4-door JK Unlimited frame (172-inches)
New Dana 12-bolt axles/diff
Dana M210 Wide (Front) (Rubicon)
Dana M220 Wide (Rear) (4.10) (Rubicon)...
Most likely it's a "leak" in the sense that it probably was done intentionally by FCA's marketing team to generate buzz prior to the unveiling. Hence the random new user posting these images that we'll probably never hear or see again.