If you start training now you will finish in about 15-18 months time. No-one can say today what the industry will be like that far in the future ie any unforseen event could trigger a slump. Who knows if the slowdown in the Chinese economy will spread worldwide. Will tensions between Iran and Saudi affect oil supply/prices? Will there be another big terrorist act? Just too many unknown variables to predict that far ahead.
Starting training at ANY time is a big gamble.