I still have this problem with 15.02.1. No estimate is rendered. I am using Cura with a 3rd party RepRap style printer (5-nozzle RoVa3D). I recently upgraded from 14.0x.
I added an Ultimaker Original, selected it, restarted, loaded a model and I do get the estimate shown. If I then select my printer, the text stays and no re-estimate is calculated. If I then quit and restart and load a model with my printer, no estimate is displayed. I only see an estimate with the Ultimaker Original profile.
Creating a new profile for my printer also displays an estimate.
Is there a problem with using printer definitions created in Cura 14.0x?
EDIT: Update, I found that when I set my printer back to 4 nozzles instead of 5, the estimate displays. Only when my printer is set with (the correct number of) 5 nozzles does the estimate text break.