If not Krashan is up for the job any longer, maybe some other volunteer could be offered to step up?
Or if nobody is interested to work with FLAC at all, then how about some other codec for Reggae?
Personally, I would love to see MorphOS native (through Reggae) read/write support for WebP:
Reggae video part has been mantained by me since a long time (just check version of decoder files :) ) and most of important image decoders and encoders have been written. Now, i'm working on image filters which will be included in next MorphOS release. Then i'm going to extend video formats (starting from iff anim and all divx, etc.) But i won't work on sound classes, so no Flac encoders/decoders from my side.