If the current momentum continues backed up by positive data for steel/MET coal then I would be looking at the retest of May highs around $20-$21 in the next 6 weeks or slightly longer. There will be decent resistance @ $14-$15 and then @ $16-$17. Of course! the broader market needs to be stable. But, if clears $20.71 high then clear skies until $28.
I'm a options guy and never think about 2 years in to the future. But, to answer your question... it really depends on what you feel about the global economy? Steel demand? China? and the broader market in general. My long term view is that this whole economic recovery is a sham fueled by money printing and will end badly. But, If I'm wrong then WLT can move nicely with increasing MET coal prices as they are more lean & efficient with their costs.