Should I prune more? How much more? Now is generally not a good time to prune tropical/ subtropical species of ficus; however, since the plant is completely defoliated, there is no added concern associated with pruning as hard as you want. I would use the opportunity to remove problem branches, i.e., branches which are rubbing, crossing, growing too close together or growing straight up, down, or back toward the trunk.
For best results and appearance, your hard pruning should normally be scheduled for sometime in the 2-3 weeks before the summer solstice, depending on where you live. The goal should be to remove any/all lanky growth which occurred between late fall through early spring. After the annual hard pruning, allow all branches to grow until the 3rd leaf on each branch is starting to open, then prune the branch back to 2 leaves.
This will force new branches to grow in both leaf axils (crotch formed by leaf stem and branch it's attached to). When each new branch has 3 leaves, continue throughout the summer to pinch every branch back to 2 leaves. Around Sep 1 (if you live in the northern hemisphere) stop pinching and allow the tree to grow all winter w/o any form of pruning. Next summer, start the cycle over again. This is how to keep your tree as full and compact as possible.
How often should I water now? Water only ass needed. Keep track of moisture levels deep in the pot (where it counts) by using a wooden 'tell' made from a dowel rod. More re using a 'tell' below. Proper watering is a critical component of your care regimen.
Do you think she will make a comeback? Yes, but it is very important to avoid over-watering because all water loss via transpiration has been eliminated with the defoliation.
The plant wants more light than it will get where it's sited.
What have you been doing about nutritional supplementation (fertilizing)?
The plant would undoubtedly benefit SIGNIFICANTLY from a repot (next June) if you haven't been repotting regularly. A repot is more involved than potting up as it includes bare-rooting, root pruning, and a change of soil. A repot ensures all limitations associated with root congestion are eliminated; whereas, potting up ensures limitations associated with root congestion remain as limitations until a pair of hands actually gets into the middle of the root/soil mass to eliminate congestion and problem roots.
Happy Thanksgiving!
Al
