The Standard Model of particle physics (as observed) breaks down at the TeV energy scale, violating unitarity without new content which breaks the electroweak symmetry -- presumably a Higgs boson. The LHC was designed merely to discover the Higgs boson, but after years of careful study, we expect it to also be able to characterize many Higgs sector variants quite well. Other theoretical progress suggests that the solution to EWSB is linked to other likely major discoveries at the LHC, such as dark matter and possibly the flavor problem, but might not even involve a Higgs boson. It's become clear that theory still has a great deal of phenomenological preparation to do for the LHC era, both to cover the range of possibilities and to discriminate amongst models once data arrives.