When I was there, I asked the same question.
The gentleman said they were not only re-releasing the Han bespin line, but will be available individually.
Meaning you you can purchase the jacket or shirt or pants separately.
Also, the chewbacca setup will be extremely pricey. Suggested each costume would be in the $10,000+
They are still reworking the mouthpiece with a "duck like" mouthpiece in order to make his jaw move.
this is freak'n awesome!! now i gotta tell santa clause what i want!