The title sequences has been updated to reflect the new Zords. This is the first major update to the credits with the exception of the addition of Jason David Frank.
First time we see how Lord Zedd actually grows his monsters by throwing a grey/silver looking grenade or two balls together. He send it out to the monster and they pull it apart and they explode to be big size.
When they call for the new zords the footage used to call for each zord are from the episode "green with evil part 5" after they save Tommy and they had morphed together.
With the exception of the dragonzord, the dinosaur zords are destroyed again for the last time. Though you still see them in the calling of the thunder zord sequences as digitally inserted introducing the new thunder zords as each ranger calls for them.
When the rangers are about to destroy the monster you can see the entire cockpit set and its clearly widen out.