The Cavs logos will ~pretty much~ stay the same, however, they have been streamlined a bit.
From NBA.com — The new Cavaliers logos will carry forward both the popular “C-Sword” and “C” logos from previous years.
Navy remains a complimentary color, while black is officially introduced as a new and permanent addition to the Cavaliers color palette.
Black is a nod to the historic turning point in the 2016 NBA Finals when the Cavs wore their black-sleeved uniforms in games 5 and 7 of the NBA Finals when they beat the Warriors in Golden State.
The new logo collection also includes a new wordmark, a new secondary shield logo, and a new global shield logo.
Check them out: