He would not be dealt with judicially unless there is persistent spiritual association or he openly criticizes the disfellowshipping decision.
These are very specific and let anyone who associates without talking god stuff off the DF menu.
They should lose 'privileges' according to the 2010 Flock book, but any attempt at DF would be overstepping the instructions.
Anyone, especially a JW, who states otherwise, should be asked to supply the paperwork to support their position.