Samsung is going to release the S21 early 2021 to take advantage of Apple’s late release of the iPhone 12 (compared to past years).
Both the Exynos processor and the Qualcomm 875 processor (U.S. version of S21) have BT 5.2. So Samsung’s 2021 phone release in the next few months (“still a long time from now”…) will be BT LE Audio capable, presumably needing a firmware update at most since LC3 is just a codec that needs the hardware that qualifies a phone for the BT 5.2 spec.
Quote from sammobile: Galaxy S21 Ultra and Exynos 1080 SoC acquire key regulatory approvals - SamMobile
In parallel with the Galaxy S21 Ultra acquiring its NFC certificate, the upcoming Exynos 1080 SoC also saw a surprise entry in the Bluetooth database. The chipset is compatible with Bluetooth version 5.2 and it was successfully tested by the regulatory agency over the past few days.
Quote from Qualcomm Snapdragon 865 vs Snapdragon 875 Specs Comparsion (dopetechnews.com) (Qualcomm Snapdragon 865 on left, 875 on right):
And not everyone can afford new HA’s…! Can cost more than FIVE new iPhones if you go for the full-package deal at a full service audi…, especially if one’s insurance only partially covers replacement every 3 to 5 years - it’s the HCP cost of BT 5.2 that I’d worrry about!