I'm still thinking the next halving will show no noticable change in price pattern. It will possibly mimic Litecoins last halving that was a dud. In that regard, I think it IS predictable this time around. Each day we start to identify more patterns with Bitcoin that are ringing true. Bitcoin now has enough history behind it that we can start figuring it out its behavior much better.

To recap: the next Bitcoin halving will possibly just be business as usual without any noticable effect in price or pattern.