Didn't know if you are able to ride but;
For a horse coming back from long rest
week 1-Road work/walking, starting @ 30 minutes finish @ 1 1/2 hour week end.
week 2-Road work/walk-trot, holding more together with periods of strecthing.
week 3-road work, with 20 minutes flat schooling.
week 4-30 minutes road work, 30 minutes schooling.
week 5-30 min. road work, 3 days flat schooling, 2 days grid work,hack out
week 6-30-40 flat schooling, 10-20 jumping, hack out.

Of coarse if coming in after a short break you can move along quite a bit faster and by week 5-6 put in a short gallop or x-country school.