AMD could be launching 7nm Raven Ridge APUs sometime in Q4 2019, according to Wccftech quoting an insider source. Not much is known about the new parts, but it is assumed that 7nm Ryzen APUs will bring improvements in IPC and boost clocks along with increased graphics prowess for the integrated Vega GPU.
https://www.notebookcheck.net/7nm-AMD-Ryzen-Raven-Ridge-APUs-could-launch-four-months-after-Navi.424010.0.html