Well considering that PURE Jingles seems to think it's in-house and the job description on the BBC seems to back it up, so it looks like it's more of a in-house move..
I suppose it would be expensive for an outsource production to produce, but at the same I would have thought it would be just as expensive for the BBC to produce a package, although you are probably right about having a smaller team. I suppose that would save costs a bit.
It also mentions 'Dance Anthems With Greg James'. Is that getting new imaging as well or am I looking too much into it? I would have also thought that if Greg's DA's shows would get new imaging I would have thought Danny Howard's show would get them as well?