Reportedly, Samsung is gearing to upgrade over 70 devices to Android 13 from this autumn onwards. However, the company is slated to open its One UI 5 beta program much earlier, potentially when Android 13 reaches Platform Stability in the summer.
https://www.notebookcheck.net/Samsung-to-begin-One-UI-5-beta-program-in-July-with-over-70-devices-rumoured-to-receive-Android-13.613764.0.html