Brave can release whatever software they want, but they maintain no control over the original token. The token maintains whatever worth the larger market assign

Brave can release whatever software they want, but they maintain no control over the original token. The token maintains whatever worth the larger market assigns to it, and if there isn't majority buy in with NuBAT, it simply won't be used. Brave being open source, large enough dissatisfaction would result in the browser being forked with the original token in play.