Certainly possible, but it could take some time. There are just so many variables that affect nat gas prices. Many had written off DGAZ for dead, and it made a strong comeback as nat gas futures fell.
Things that could get UGAZ back to $10 include an extended winter that lasts into early spring. A drop in nat gas production because oil wells are abandoned or new ones aren't drilled. A hot summer (it's been a while since we've had a hot summer that cut into the storage refill season). Higher demand late in 2015 due to exports, coupled with whatever else is going on then as far as weather and production.
No doubt, the long nat gas trade has been a bust this fall / winter, unless one traded it in November. It should be noted that due to rollover rot and decay, it is harder over time for UGAZ to get back to $10.