Yes, that might be a bit difficult for you to keep up with embroidered updates!
You might be able to keep the fun going though, by making some additions that you periodically mail to her.
They could be added via using stick-on velcro or safety pins or perhaps her Mom (or Dad!) could hand sew them in place.
If you consider doing this, you will want to make sure you have some good measurements and photos of what you create, so the add-ons would fit. Maybe even draw it out onto kraft paper, so you can check how things fit.
Have fun creating this for your special Miss ... being so far away, it will be a nice connection for her to her Grandma!