The only teaching they won't ever change is the no talking to disfellowshiped.
1914 they should have got rid of that long time ago, but I don't see any signs of this happening. On the contrary, the date helps their apocalyptical speech.
On the other hand, I really see them changing something about the anointed class. This week's workbook, in the study Bible note on John 10:16 just says that means "" Jesu's followers would be united" just that. No mention to the other sheep being the great crowd who have a different hope.