Hi Buster i saw this thread while looking around and see no response perhaps someone can help.
Curious how old is tree, i know when one cuts top part of tree though it forces lower and horizontal growth, you question if i read it right is will the new growth created have time to harden off?
I think some might come back thats started and some might not , but long as main trunk does survives next spring you will be fine and it then will spring new growth for figs.
Im thinking without seeing pictures your tree has 1 trunk and not in bush form as you mentioned you left but 3 leaves.