Very likely to be true.Last time that I tried searching for any loose tidbits online about a month or more ago, all that I saw was this.
Titmouse Talks Animation - ComicsVerse
Animation is one thing that Marvel TV is especially tight-lipped until it's pretty close to being available to the public. We probably wouldn't even have heard as much as we did with that press statement already if Fishburne's production company wasn't involved. I don't believe that we're close to seeing this cartoon yet, assuming that it's currently in production, so I wouldn't expect to hear anything. My personal theory is that this show is possibly going to the streaming service, so it might be even longer before we get news.