I feel like testers getting Pandora for free is a nice gesture but not really a fitting or exclusive enough reward. That being said Pandora should be available to everyone, not only testers.
So I would like to see a special paint for Pandora that is exclusive to EA testers. A paint job with different tiers or several different ones would be even more sick, the more time someone spent playing / testing NA, the more details and colours on the skin. Or simply make it so someone does not qualify for the skin, if they don't have minimum 500 ( just a suggestion that seems fair ) hours of play time on the account.
There could also be a special flag for everyone that put more than 1k hours into the game pre release etc. ...