It's been about six years since GM introduced the Lambdas (Buick Enclave, Chevrolet Traverse, GMC Terrain, and Saturn Outlook) to the world and they're beginning to get long in the tooth. GM is quietly working on next generation of these models and some spy shots have come out of Buick Enclave with added camoflage.
The pictures show the Enclave will be retaining it's large size as the current model. Also, the front end gets a new grill with longer, thinner grille slats spaced further out. The back end doesn't show any changes thanks to all of the camouflage.
Source: Inside Line