Above my green box, the wave (iv) - (v) possibility to new lows would be highly questionable. Note the 50% retrace of wave (ii) - (iii) which is generally the maximum extent of a 4th wave retrace. Alt (iv) is however below the 76.4% extension of waves (i) - (ii) and thus would be valid. One thing is certain, there's no Ending Diagonal playing out off the mid-March (iv) high.