According to some core files buried deep in the Android 9 core, Samsung's foldable phone gets an interesting codename, while it looks like the rumors regarding a new naming scheme for the upcoming Snapdragon SoCs were indeed spot on. Moreover, the Galaxy S10 is as good as confirmed to get the Snapdragon version in addition to the Exynos one.
https://www.notebookcheck.net/Foldable-Galaxy-phone-and-Snapdragon-8150-SoC-mentioned-in-Android-9-core-files.337010.0.html