The gigantic Wolfhound has the tonnage and decent torso hard points, but it can exclusively run energy builds, for instance. There are definitely light IS mechs that are intended to perform the gunboat role, but due to a few factors like their dependence on arm hardpoints, gigantic size, squishyness with XLs, and other hardpoint limitations they fall short. It's like the Inner Sphere counterpart to the Adder or Kit Fox, which I think is an absolutely dandy role that current IS mechs have a hard time filling. The Anubis would be super interesting too, but that's more likely to be included as a new-tech mech release rather than last of the old style of mech packs. The JVN-11D would need different hardpoints or quirks, or engine cap to be something other than just a factory-upgraded JVN-10F. The other two variants have pretty tame new tech, IS ER medium lasers on the JVN-11D, and snub-nose PPC+machine gun arrays for the JVN-11F. PGI could launch most of the Javelins in spring and the reinforcement pack as part of the summer timeline jump. Of the Javelin variants listed on Sarna, only the JVN-11D and JVN-11F are out of timeline, and they are both potentially possible with the summer tech release. Javelin? Maybe the Javelin or the Ostscout?

Sarna snub nose ppc