Kathy,
There are some children/adults who will never "catch up" to their chronological age. I'm expecting & planning for this for both kt & wm.
I truly believe that there is a point where I will need to accept that this is "as good as it gets", especially for wm. The prognosis for him to get beyond a certain emotional/developmental stage is grim.
I could be genuinely surprised; however given the level of delay displayed in both of the tweedles, it will be a very long time.
So I plan ahead, & pray for the best outcome.