Normal right-angled Artin subgroup classification conjecture

Let $S_g$ be a closed orientable surface and let $N$ be a normal subgroup of $\operatorname{Mod}(S_g)$ that is isomorphic to a right-angled Artin group. Normal right-angled Artin subgroup classification conjecture. The group $N$ is isomorphic to a free product of groups from the list

$$F_\infty,\qquad \mathop{\ast}_\infty(F_\infty\times F_\infty),\qquad \mathop{\ast}_\infty(F_\infty\times F_\infty\times\mathbb Z).$$

The source presents this as an open classification conjecture, based on the displayed constructions of such normal subgroups.