Build of the Mark 2 is currently halted and it is sitting on site at Cocoa Florida. It had slight design improvements over the Mark 1.
It was deemed non-flight-worthy, having the same flaws as the Mark 1 prototype Starship in it's bulkhead.
No word as of December 7th 2019 as to what will happen to the partly assembled Spaceship. Mk2 had 16 rings in the body & 5 rings in the nose