A lot would depend on the critical current and critical field that such hypothetical superconductor could have. If it's too low, its usage where large currents are needed, like motors or chips will be small. As example, look into the generation of high magnetic field. In a typical physics lab or MRI machine, the current state of the art is by superconducting coils, but for very large magnetic fields (several tens of teslas) you need to fallback on copper, since there are not known practical superconductor able to sustain such fields without losing their superconductivity