This is a little more out there. Because it will require skiing and ice climbing, it may be worth it to hire a porter to ski a load for us in and out. I've seen these ice climbs form every spring for two years, so I'm convinced its a regular thing, and only a short day away from the trailhead. Cold weather camping can be, well, cold, but I'd make up for it with lots of warm food, hot drinks, and but-kicking ice climbing. There's no reports of prior climbing here, so its all potentially first ascents, or at least first documented ascents.
This is a three day trip, minimum. Consider taking four days or five days to really maximize the BANG!!
Above: Three of the more promising lines. Below: There's climbing on the opposite side of the canyon as well. I took these photos during a spring ski tour, so I imagine going a month earlier will have more ice and colder temperatures.