Well, apparently. According to assorted internet sources, the 2014 Steam Summer Sale starts on 19 June 2014. Sources like this thread on the NeoGAF forums, and then this confirmation by Eurogamer, and some of these Google search results.
I’m not certain whether I’m happy with this news. My money all got sunk into a pretty new DeathAdder just last week (review incoming… eventually… probably on the weekend…), so I guess it’s time to start skipping meals (at least those I need to pay for) and avoiding social engagements.
Whatever the case, if it’s not tomorrow, it will be soon. So, y’know, prepare thy wallets.