[JAS84]

In general the concept seems to work for ITV3 much better than the other channels.  I suspect when the channels inevitably begin to go their own way ITV3 will probably be the last one standing with this set.

No different than the 2013 rebrand then, perhaps?

CITV and ITV4 also kept their original 2013 looks. CITV's still using theirs. ITV2 changed after a couple of years, ITV Be hadn't yet launched, and ITV1 changed a few years later.

ITV2 will almost certainly be first to dump it, they also didn't stick with their 2006 set for long before introducing a new 3D version of the logo. ITV3 and ITV4 kept theirs all the way through that time too, ITV1 quickly changed and CITV rebranded after a while.