Starting to work on a new chip, NXP S32S247. 8 cores in dual lockstep (4 user cores), 16MB of ram! Lots of IO. They still have the Freescale logo on the chip which is a little funny.
Hoping to do a NuttX port "soon"

. There is a FreeRTOS port, fortunately, to use as reference.
First thing out of the box, having issues with JTAG -
https://community.nxp.com/thread/528998. I guess embedded is hard enough without using new silicon, one a new JTAG probe, with a new IDE.