I'd let it grow out.....unless you are completely satisfied with the trunk size and tree health....and it's what you want. My thought, without tree size information, is that more trunk growth is needed....greater diameter. To me it looks immature yet. Size growth will give this tree much more character.
What's the tree diameter right now?
Is that area below and including the lower two chops deadwood in front?
Letting it grow out will thicken that lower trunk. And, if I recall right, from wild willows growing out back, the willow tree will respond with buds whenever chopped.