In the onedimensional case the Langlands program is equivalent to the class field theory and the twodimensional case implies the TaniyamaShimura conjecture.
I would like to know are there any other important consequence of the Langlands program?
In the onedimensional case the Langlands program is equivalent to the class field theory and the twodimensional case implies the TaniyamaShimura conjecture. I would like to know are there any other important consequence of the Langlands program? 


There are many, many consequences of the general Langlands program (which I'll interpret to mean both functoriality for automorphic forms and reciprocity between Galois representations and automorphic forms). Some of these are:



Langlands functoriality (base change for $GL(2)$) implies the virtual Haken conjecture for closed arithmetic hyperbolic 3manifolds. 

