Usually the first thing I do when I get up is check Google reader and get up to date on what's rumor milling around the internet and surprisingly the things have been relatively quiet these days. That was until I loaded up the GW2 beta client and it started downloading something.
See for yourself.
Noted, the download was pretty small. Somewhere in the realm of 35-40mb. And the content text from last week's Stress Test hadn't changed, but could this be a sign of an upcoming Beta Weekend Event? Possibly. We do know that during the first BWE the beta clients from earlier were updating as much as 2 days before the client was released to the public and we also know that ArenaNet has stated that they're aiming to have a BWE once a month. While last Monday's stress test was fun and all it wasn't a BWE, and factor in that there's only one weekend left in May, so if ArenaNet want's to keep up to their word it reasons to believe there's a good chance of a BWE this coming weekend.
Though, as I'd mentioned at the start, this is all just unsubstantiated guessing.
In the meantime you should go check out GW2Guru. There's an awesome post showing all the armor sets we know of. It's great eye candy.
UPDATE: There was a post on the GW2 Facebook a little bit ago regarding BWE and their frequency. I think this part gets to the point:
"We're going to adhere to a monthly schedule as much as feedback and development allow, so it may be a little more or a little less each time, depending on how things progress. For now, we will have more information on upcoming Beta Weekend Events and stress tests as soon as we're able, and we thank each of you for being an important part of the creation of Guild Wars 2. ~RB2"
So while it's possible that there might be a BWE this coming weekend, I'm definitely not going to get my hopes up.