Board Thread:Speculation House/@comment-294840-20170115115407/@comment-4010415-20170115130234

People probably discover their Semblances at their own pace. Jaune had been working on finding his for less than a year when Pyrrha died, and now he's left with just training videos. It's possible the training video we saw him using is teaching him how to make an Aura arc like we've seen Blake and Qrow do, but I don't think that video would help him find his Semblance.