As far as languages do divide into these categories I agree with >>3, innovation happens in A, consolidation in B. However, I'm not sure the split is really along the right lines; the ultimate kitchen sink languages, Python and C++, were both largely designed by 1 person, while the examples of Ada and CL as committee designs were given above.
Maybe the difference is more between languages designed from a set of basic principles (Lisps, Forth), or to solve specific kinds of problems (Prolog, Erlang), vs those made to be a general purpose tool with the broadest possible array of features.