We are still waiting for Nintendo and their NX. If we believe in the latest rumors, NX would be a handheld with console support (via dock), with detachable controllers and could use cartridges. Just for the curious, NX will be the Nintendo’s system revealed closer to the release.
In a different level, Digitimes has published that Foxconn would have started the trial production of NX. Foxconn would be the largest OEM for NX. Misumi Electronics and Hosiden, Japan, would be the second OEM for NX, at least according the sources consulted by Digitimes.
Sony would have trusted in Pegatron and Foxconn to produce PS4 Pro and the system would have begun production. Production would be increased during October and November to satisfy the high demand in the last months of the year.