Wiring additional light to a 3-way switch (switch > light / switch > light)
Not without re-running the cable between the switches

Right now, there's no switched hot at the first switch, just a hot, a neutral, and two travelers.  You'd need to replace the existing cable between the switches with a 12/4 to get a switched hot to the first switch from the second.   At that point, you might as well instead run a cable to the 2nd switch box, or to the light box for that matter.