I think Silva will be less complacent coming into this fight. He'll train harder and, if the thought of being controlled by Hendo in the last fight worries him a little, we may even see an improved Silva.
Although which Silva shows up will depend on how his fight with Forrest goes.
If he gets rocked or hurt or KOed by Forrest will he be 100% mentally and physically coming into this fight?
If he destroys Forrest will he return to complacency?
Will Forrest find a hole in his game much like the leg kicks with Rampage?
Will Silva concentrate on training for Hendo's wrestling, only to find Hendo has concentrated his training on his hands, kinda sorta like Mir vs Nog?