[W. Knight]

With the risk of going slightly off topic, the last update we had on CBBC's closure (and of BBC Four BTW) was in May last year where Charlotte Moore (the BBC's Chief Content Officer) said that the channels won't close "until we think they don't bring value to audiences".  "At the moment, they are extremely good value," Moore insisted. "We won't close those channels until there is that tipping point. Now when that tipping point will come, when we think, 'Actually, that isn't providing value to audiences', none of us quite know, but we're using data to evaluate that all the time." 
Make of that what you will

Allow me to add the source here:
www.radiotimes.com 
But the same article also has this:

Referencing BBC Four and CBBC and how they appeal, respectively, to older and younger viewers, Moore said: "It's very important that we have these channels in order to be genuinely a universal broadcaster, but we are [also] using those channels at the moment to help drive audiences to iPlayer, because obviously younger audiences absolutely know how to get to iPlayer but that's not a universal experience for everybody.

"So we're using those channels very much as a way to drive and grow iPlayer."

Re the closure - sad to see another one go, but I guess children's viewing habits have changed to a no-return point for these channels in the past decade. Prefer the CITV brand to keep running on ITVX though - too valuable to lost.