I agree with Ziddina and NewChapter. Unless there are new or younger elders trying to make the climb and gain notoriety by "getting" you, you should be fine. If they try to arrange a judicial hearing they have to make several attempts to personally invite you to the Kingdom Hall. This is policy.
If after several attempts they cannot reach you then they may send a registered letter. If you do not respond then it is possible they could meet without you and render a decision. However, this route must be accompanied by heavy documentation in order for a disfellowshipping to stand. And you must be trying associate with active JWs to be considered a threat. This is more trouble than most elders are willing to go through and so they will likely make a few notes, create a file and keep it should you ever decide to return.
Unless you are publicly speaking out against JWs on TV or other media they will probably leave you alone.