I took over plenty of packages for Arch Linux (mainly pro-audio) by the end of last year.
After a successful rebuild of many not touched for years and some long outdated, I'm now pulling in new candidates from the long list of unsupported (AUR).
Additionally, I will add more meta-groups to make installation of useful pro-audio packages easier (no separate repository needed).
IMHO it is not needed to have a dedicated distribution for pro-audio, as long as
- it is easy to build packages on that distribution
- documentation is good
- there are enough people to take care of packaging
- there's a real-time kernel *
- you are not serving a special kind of hardware, that requires modifications (because it's a different CPU platform altogether)
Now, regarding the real-time kernels: linux-rt and linux-rt-lts are still (wonderfully I must say) taken care of by Joakim Hernberg (but years of doing that certainly wear you down).
After the round of additions has ended and the meta-groups have been added, I think it might be time to think about their inclusion in the [community] repository as well. However, maintaining a kernel package is no piece of cake and I will not do this on my own (with so many packages on my back now). Every person who ever maintained one, knows that. That's why it is also a very touchy subject amongst all the Trusted Users in Arch Linux (no one wants yet another kernel, if there's no good reason for it... and I think I am about to create a good reason for it: to serve all awesome pro-audio things that Linux has to offer!).
Therefore, if you feel like you want to contribute and are into packaging (at least a little), please let me know.
Maybe it's time to become a Arch Linux Trusted User, too?
* linux-rt and linux-rt-lts are not in the Arch Linux supported repositories yet!