In an enquiry to Paramount Africa over the sudden disappearance of NickMusic Africa had responded to say it will be back later in the year. Which is strange as Nicktoons would often just rehash previous episodes only for them to have scrapped it entirely.
Could it be that NickMusic will move to Nickelodeon with repeats on Nicktoons I mean the channel has lost touch of reality as it appears to have undergone a mini-merge with global feeds. They already offer Transformers: Earthspark, Monster High and Big Nate.
Nickelodeon did rollout a new on air look last year and had been spreading it across various platforms. Of course, the feeds in Africa and various international regions have yet to update their designs.
If anything, it's likely NickMusic Africa is playing a part in this maybe Nickelodeon wants to give the studio a new design. But questions amount to when Nick Jr. and Nicktoons would rebrand as Paramount promised end of the year for Nick Jr. but none of that came to pass.