A more simple explanation of WT's dogma:
A Person named Justhuman dies
God remembers ALL the information regarding that person, how he looked, his personality, temper, character
God is acting like a Super Computer and stores in His hardrive all the information of Justhuman
God resurrects - actually makes a new body for Justhuman that has all the physical characteristics of that person and inserts in the newly created brain all the information that was stored in His hardrive(like copy-paste)and there we have the resurrected person known as Justhuman
So JW's hope is to be copied and pasted into a newly created body