Title. Made some cool designs and it would be a shame to lose them!
I don't believe you'll be able to save your emblem from open beta as nothing will be transferred over into release. You could always take screenshots and save them so you can recreate them later!
Take a picture of your emblem and you can make it again once you get the game. That's what I did
This is the 3rd time I've made the same emblem, I think I'll be quite good at making it by the time the full game is released