We've been quietly downloading patch 5.3 on the background service for a little while now. Needless to say, the major question on everyone's minds today has been whether or not we'll see the new patch hit tomorrow. Wonder no longer: It's been confirmed both by blue posters and on the official Warcraft Twitter account.
@steve_cam Hah! No I guess that was misleading. No, 5.3 will not be released this week.- World of Warcraft (@Warcraft) May 13, 2013
It looks like those of you waiting patiently for valor point upgrades, new scenarios and more will have to wait at least another week. On the one hand, I'd really like to see all the 5.3 content on live servers -- on the other, I'm glad I don't have to worry about a new set of quests and story content to obsessively run through just yet. Whether or not we'll see it next week is up in the air, but given the active state of the background downloader, we can expect patch 5.3 ... soon™.