Was just about to post this.
I can't help but notice how close we are in proximity to April 1st...
That being said, I would love to think that it is a 5e version of Planescape...that would make me very, very happy. However, I suspect that it will likely be an announcement of the Enhanced Edition of Planescape: Torment.
Ironically, if you whois the domain, it's listed on the Whois site as PlanEscape.com.The Wizards D&D Twitter account tweeted this: "A countdown timer was recently brought to our attention. Plan Escape? Anyone know what this is about? http://planescape.com/"
Source: https://twitter.com/Wizards_DnD/status/845331125723639809
This suggests to me that (1) this is definitely D&D-related and (2) the "Plan Escape" title is probably just to mess with us.
Go, go Planescape!![]()
The countdown will stop before April, 1, but it can be PST:EE anyway.