Bespin Price & Deals
Retailers are selling Outer Rim as a standalone expansion for $15. That will almost certainly be the price for the Bespin DLC.
What this means is that the $50 Season Pass is actually a deal. Instead of paying $60+ for all four expansions, you get them all for $50, or cheaper, if you can find a deal.
We haven't seen many Outer Rim deals so don't expect to see a ton of Bespin deals around its release date. If you want to save some serious cash on the standalone DLC, you'll likely have to wait.
And there's a good chance you'll be waiting awhile.