Bryan, Sony is doing a pretty good job reissuing their catalog. If you kept up with their website (which they recently did a huge redesign for, including hiring Peter Filicia to blog) you'd know they have some reissues coming next month.
They recently put Threepenny Opera, Let it Ride, and Jimmy on CD for the first time. They are doing these reissues digitally and on disc (through arkivsong.com). Give them time. I can't even begin to understand the politics and paperwork behind these reissues. Go to arviksong.com to see what they've released and re-released (many long out-of-print CD's like Walking Happy, Darling of the Day, the Pearl Bailey Hello, Dolly!).
Again, they have some releases (titles have not been revealed) coming in July.
Decca seems to be a brick wall. Bruce Kimmel recently said in a thread that their various changes of ownership have made it tough for him to even do his 1,000 copy pressings.
"Broadway...I'll lick you yet!"