Gorsky–Negut rational Shuffle Conjecture for Hikita polynomials

Let $(m,n)$ be a coprime pair of positive integers, let $\operatorname{Park}_{m,n}$ be the set of rational parking functions, and let $H_{m,n}[\mathbf{x};q,t]$ be the associated Hikita polynomial. Let $\mathbf{Q}_{m,n}$ be the corresponding symmetric-function operator.

Gorsky–Negut rational Shuffle Conjecture. For all coprime pairs of positive integers $(m,n)$,

$$\mathbf{Q}_{m,n}\cdot(-\mathbf{1})^n=H_{m,n}[\mathbf{x};q,t].$$

This is the rational analogue of the Shuffle Conjecture, relating the operator construction to Hikita polynomials. No resolution evidence is supplied in the text.