I'm checking the Sky Community topic and I'm not seeing anything about it. Still, would be an interesting launch - there isn't really a kids-oriented music channel out there at the moment.
Yeah, otherwise it would be reported from the Sky Community 'Changes to the Sky TV guide' thread. Also, 353? Would it make sense to move it next to Nick's other childrens networks? 353 is a odd number for a childrens music station and POP used to be one of them.
Seeing as MTV Music is currently the highest rating MTV music-based channel of the family (and 2nd most watched music channel in the country, only to Now 80's), I can't see ViacomCBS axing it any time soon.
Until recently, that page also included the upcoming rebrands of Quest, Really, Quest Red, Food Network, DMAX, HGTV and TLC in 2021 as Discovery Quest, Discovery Really, Discovery Quest Red, etc., which was never confirmed, and has now been removed from that page.
The fact that these channels now have their own section on Sky catch up (with the rather clunky name of "Quest, Really, Quest Red, Food Network, DMAX & HGTV") shows that they have no intention of rebranding them.