One last Nifty alternate

I have already considered that wave b may be over, but if we do not break 15000 it is possible that wave b is still forming a triangle as shown on the chart and it requires one last push to 15370 to complete the triangle in wave b before wave c down starts. 

Here is a zoomed out chart of a alternate wave count as well, where 5 waves ended in Sept and another 5 waves ended just now