Will this tree fill out?
This tree is too old to develop a branch from the trunk. the other branches could be pruned to fill in over time but it would not be in this coming season. The tree appears to still be attractive but that is a subjective opinion. If the tree is not a handsome specimen to you, then you may choose to replace it.
Feel free to contact our office if you have other questions.
Let me know if I can help you further!
Jefferson County Cooperative Extension Service
200 Juneau Drive
Louisville KY 40243