The aim of this workshop was to bring together researchers in topological field theory, geometric representation theory, mathematical physics, and algebraic combinatorics to report on recent progress and open questions at the intersection of these fields. In recent years, several independent research groups have raised the possibility of new 3- and 4-dimensional topological field theories tying together Khovanov-Rozansky knot homology, double affine Hecke algebras and elliptic Hall algebras, super Yang-Mills theory, Betti quantum geometric Langlands, and Hilbert schemes. As each of these topics constitutes a specialist field in its own right, it was essential that we brought researchers together to exchange ideas and insights.