I found the end, when Don physically took his kids to the house, then standing in the street out in front and telling them that this is where he grew up, quite moving. They made a point of letting us here Bobby say that "this is a bad neighborhood". So the kids knew where they were. For Don Draper, this was beyond huge, in fact I'de say it was the most biggest and most positive step we've seen Don make toward understanding himself and allowing those whom he loves most to actually enter his life.
I felt the same way. And remember the song that played as Don looked at his kids:
I've looked at love from both sides now
From give and take, and still somehow
It's love's illusions I recall
I really don't know love at all
I usually don't speculate on what direction things will go, but that scene was very suggestive of redemptive potential.