This is possibly inaccurate, but an HTC rep at a BoomSound Lounge event today told me that HTC has a 4.2.2 update ready to go. It just needs to get pushed out to the phones once they're shipped and activated; so pending carrier delays, it should be out pretty soon after the launch. That's just what I was told, so it'd be nice if someone at another one of these events could corroborate this.