Asus seems to have quietly put up the FX503 multimedia and gaming notebook on its website. The FX503 is just a slight incremental update to the already good FX502 with RAM options up to 32 GB, choice of GPU VRAM, and an overall less thicker profile.
https://www.notebookcheck.net/Asus-quietly-puts-up-the-FX503-on-their-website.257692.0.html