I know I'm having some homophone trouble here but it doesn't sound as though you've ever ridden a segue. Save up to buy one. I hear they're fun.
Golden Boy would throw a ton of money for a Khan rematch, preferring that over Matthysse for certain. They'll ave Khan, the bigger money maker, take out the easier guys en route to further stardom and ranking while Matthysse take out the more difficult, less celebrated opposition.
If the Garcia fight warranted a rematch i say go with that but if not then i say rematch unify with Mattysse, unify with Petersen/Holt, or maybe move up and face Bradley the guy who was the man at 140 when he moved up