The 68k is still being made in the form of the 680x0-compatible line from NXP. http://www.nxp.com/products/microcontrollers-and-processors/...

They're in the "legacy" line and labelled "not recommended for new design" but I think that's just design opinion and doesn't imply it's no longer made.

I'm sure this video has done the HN rounds before. It's a slow but fascinating watch. "Motorola 68000 Oral History Panel" from original Motorola team members. https://www.youtube.com/watch?v=UaHtGf4aRLs