As you can see here I had a similar question a couple of days ago.
Firefox packages on Arch ARM still did not get an upgrade.
I think a lot about what could be done about it. Lot of packages do get updates very regularly. So to me it seems I either have to step in and learn how to maintain those other packages myself possibly offering to do the job for Arch ARM (with the big IF about being allowed to).
Or accept that a lot of packages will not be maintained as frequently as I’d like to and look for alternatives provided within the repository.