When MPEG-5?

There is. MPEG-5 EVC Basic Profile that is Patent unencumbered, with only dozens patents that is soon to be expired, and EVC High Profile that competes with VVC in terms of quality.

There is also LCEVC ( Not connected with EVC ) that is a scaling layer on top of existing video codec. You can apply LCEVC on top of EVC, VVC, HEVC or AVC as well as AV1 and AV2. LCEVC has been selected by Brail as part of their TV 3.0 technology stack on top VVC.

While there are momentum on LCEVC, I actually wished EVC gained more momentum. I guess everything is too late now.

Never, I hope