Cartoon Network, TNT and Investigation Discovery being spun off from Warner Bros. Studios won't improve anything there for the average consumer. For Warner Bros. Discovery, this brand split means they'll be able to reduce expenses and less being spent on new content for these brands means more revenue.
Internationally, Warner Bros. Discovery always felt spun off they have proven that on a number of occasions. Take for instance, Cartoon Network has relied on imports like Jade Armor and Hero Inside or regional shows like CN To The Rescue and The Amazing World Of Gumball to build up their schedule so that's unlikely to change.
So you could say with this change what this means for Cartoon Network is similar to that of Universal TV where their parent company will rely heavily on M-Net or Showmax rather than their respective networks for these shows. If you look overseas, the current executives are moving most of Cartoon Network's shows from Max to Netflix.
If anything, the lack of content for these cable networks could lead both MultiChoice and Warner Bros. Discovery to further streamline their portfolio. This transaction has a bigger effect on the factual part of the company which comprise of HGTV, Food Network and Travel Channel.
Unlike Cartoon Network and TNT, these networks had a lot of dependency on these properties and with the current state of pay-tv I expect for less to be invested towards these brands. Some channels like Discovery Family could get booted off while others like Food Network are either sold or turned into an import for Discovery+.
