If you are looking at conduction in low dimensional (e.g. 2D or quasi-2D) systems, a lot of work has already been done on this. In particular, much work has been done on charge density waves where the electron periodicity is incommensurate with the nuclear lattice. This leads to a type of conduction very similar to superconductivity (at least in theory).
Back to your proposals. You are stating that a Wigner Crystal--a 2D or 1D lattice of electrons-- is responsible for all superconductivity?
You realize that a Wigner crystal can be observed with neutron diffraction. e.g.
"Wigner-crystal and bi-stripe models for the magnetic and crystallographic superstructures of La0.333Ca0.667MnO3 "
PHYSICAL REVIEW B 59 (22): 14440-14450 JUN 1 1999
I don't see any report of Wigner crystals being observed by neutrons in superconductors.
