Nah, just getting rid of the ties in the summer. We never made the decision to base pilot uniforms on old sea faring traditions of yore; that was a decision made a long time ago and we're stuck with it at this point. Fine.

The Navy and Marines wear their summer short sleeve dress Whites/Blues without a tie. Its not that they don't have ties anyway. They don't do it because it looks ridiculous with a short sleeve shirt. No one else in civilized society, government or private sector, does it either. Literally the only time you see such a display is airline pilots and in Dilbert comics.

Maybe we'll be able to rock beards with our ties in short sleeve shirts though. And with any luck, socks with sandals.