Although this is not official yet, it looks like Samsung has already disbanded the entire team that was working in its Austin R&D center to develop architectures and designs for the System LSI division so next-gen Exynos chips will — most likely — use solutions developed by ARM instead.
https://www.notebookcheck.net/Samsung-apparently-disbanded-the-Austin-CPU-R-D-team-and-is-planning-to-use-the-ARM-architecture-in-future-Exynos-chips.436704.0.html