I'm glad people will be able to get what they need.
For what it's worth the only part on these boards that I can think of that could become unavailable, without another part existing that is a direct drop in replacement, is a microprocessor. Perhaps before a new high volume run of boards is produced would be a good time to update the processor, if that is an issue. Unless some obscure footprint part was used elsewhere?
I can't see it being unprofitable to make any of these boards, unless the licensing fee is obscene.
