Sam and Jack returned to Washington DC so Jack could continue his job. They adopted a young girl named Janet who was 10 years old.
Teal'c returned to Dekara. He found Ishta and asked her to marry him. She said yes and Ryac threw a huge celebration in honor of this.
Daniel finally got to Atlantis, where he now works alongside the depressed Rodney McKay. He loves it.
Cameron got over the fact that he couldn't have the original Sg-1 again. He is trying to find others as good. He even offered Daniel's old position to Cassandra if she learns and reads all his notes. She has and got the job.
The SGC has returned to normal after the wedding. But it will never be the same.