Linking equivalent airspeed with waypoints, altitude, time and speed
No, it is not possible to derive EAS from the data provided.  




  p=Actual density
  
  p(o) = standard Sea Level Density
  
  TAS = True Airspeed.


You can get to actual density from the pressure altitude and temperature (ISA+ or raw).  Without temperature, it is impossible to derive air density from pressure altitude; only estimates are possible.  For a more in depth derivation, this is a good source.