In my opinion, she’ll feel a great desire for speed work as soon as she recovers completely. At least I did.
However, I started too hard (I did 4x30m from standing start, 2x30m from blocks and 1x60m from blocks + some weights). I shouldn’t have started so hard as I was quite sore the next day.
You should start increasing speed work very slowly. At least I would if I were you. I personally would do like 1x20m (from blocks, relaxed, just to get a feeling for blocks again), 1-2x30m (standing start), 1x60m (from blocks). After that you’ll see, if she’ll have a desire for more speed work. Even if she does, you should finish the training and her desire will probably increase even more till the next speed session. Ask her how she fells about it and she’ll tell you if she’s ready to increase intensity. Be patient. I did 100m and 200m test 14 days after the first HI training and I improved both training PBs.
Hope it helps.