I never thought Littlefoot's grandparents were Bron's parents. I always thought they were his mother's parents.
I didn'tsay they were, hence why I made this topic! You're completely missing the point!
There's no way to know.
Unless we somehow get another LBT film that tries to teel us. Doesn't Littlefoot have some cousins, too?
There's no reason to be rude. She's not missing the point, she just misread your post. You started off with a sentence that has nothing to do with the rest of the post.
Also, we do not know if Littlefoot has any other relatives other than his mother, father, grandmother, and grandfather. Although he would have had 3 siblings had their eggs not been destroyed.
And if another movie is made, I highly doubt the plot would stray from the main 5 to revolve around only Bron and his immediate and extended family. As jansenov said, "It's up to your (and everyone else's) imagination." Maybe you should post some of your own ideas, rather than asking everyone else theirs. I don't mean to sound rude, but you do post a lot of topics like this but never give any of your own ideas until later on.