Correcting the glare issue in mid stream ain't gonna happen and IMO shouldn't.
I'm convinced Minelab is going to squeeze all the money it can get out of that design as is.
The number one eTRAC complaint is the glare issue, coulda shoulda been corrected with their flagship detector, the CTX.
As big a PITA the glare is to some maybe most on cloudless sunny days, the eTRAC compensates by finding keepers other detectors walk over.
All one has to do is look at the amount and frequency of finds on this forum compared to the other detector finds and its arguably clear the eTRAC has the edge.
On those sunny days, i'm forced to search in a shady area or sweep in another direction out of the sun's glare.
I keep searching glare or not as there are ways around the glare.
Which is why some of us beach about the glare but keep on using the venerable eTRAC, myself included.
As i said earlier, i use all the clues the eTRAC provides on whether to dig or not including tones and FeCo digital info.
What Minelab should but i'm convinced won't do is release an updated eTRAC-II as they did similar with the Explorer:
-update the screen with a hi contrast display with a non reflective lens.
-faster processor.
-ability to add custom tones to FeCo zones similar to the CTX.
-ability to easily adjust sensitivity setting while in Quick Mask.
-on and on, search the numerous past threads here on an updated eTRAC.