The ARMv7 will be kept in 15.x version as supported while all other 32bit archs will not be TIER 1.
The ARMv7 will be dropped in 16.x.
To show here some time span ... FreeBSD 15.0-RELEASE will be released in about 2 years from the release of FreeBSD 14.0-RELEASE and after that FreeBSD 15.x will be supported for 5 years.
That means there is still 7 years of official FreeBSD support for 32bit ARMv7 devices.
IMHO its more then enough to move to something more relevant.