Nothing. They aren't going to remotely disable your copy of Word. All that this means is that in 60 days or so MS will have to stop selling copies of Word unless they convince the court to extend that deadline or they get an agreement with the patent troll.

What will happen is that Microsoft will appeal this until i4i can't afford to keep up with the case or until the heat death of the universe; whichever comes first. That, or they'll just make a workaround and/or temporarily remove the feature in question.

Patent trolls are really fucking annoying.