They could, they could, they could...in theory do so much.

Let's wait simply wait what happens. If they put out something like 40 songs and about half of them are good, it's still a better percentage than most of their releases from the past 15 years.

Not sure about It Only Take One To Say Goodbye. They didn't do a full-band recording for that and had in some way licensed it off to the Poets. I think, other than House Of Fire and the early Does Anybody version, they had rarely put out their versions of songs that had been given away.
It dropping off last minute in 2004 could've already been due to legal reasons. However, the demo version was interesting with Jon and Richie basically doing the song live in the studio.