According to Aria Noelle Curzon, who currently voices Ducky as of The Land Before Time V: The Mysterious Island, The Land Before Time Sequels (II-XIV) also have scenes that aren't included in the final cut. Information about these scenes is extremely rare, the only other evidence of them coming from a still promoting the 11th film, which features a scene not included in the movie. It is unknown if this animation still exists, or if Universal Studios discards it immediately upon deciding not to use it.
Deleted scenes for the sequels may be almost non-existent due to the lower budgets of these follow-ups. It is possible that most footage would not go to waste. As of 2017, these scenes are lost.