Finite Mod_{g,n}-orbits correspond to finite image for large genus
Determine whether, for genus g sufficiently large relative to rank r, a conjugacy class of representations of π1(Σ_{g,n}) has a finite orbit under Mod_{g,n} if and only if its image is finite.
References
Conjecture [Kisin {[p.~3]{biswas-whang}, p.~1, Whang {[Question 1.5.3]{lawrence2022representations}] For g\gg r, the finite \on{Mod}{g,n}-orbits in Y(g,n,r) correspond exactly to those representations \pi_1(\Sigma{g,n})\to \on{GL}_r(\mathbb{C}) with finite image.
— Motives, mapping class groups, and monodromy
(2409.02234 - Litt, 3 Sep 2024) in Conjecture (Kisin; Whang), Section 2