In the past 24 hours, there have been a few significant developments that seem suspicious in regard to timing, at least. The first is that Blizzard dropped World of Warcraft's next content update, Patch 4.1, on to the public test server in the middle of the night. Mortal Online's announced that its free 14-day trial program is now active for any interested parties.
Although we obviously can't be certain that all of these events are due to RIFT, timing, as they say, is everything. Have you seen any other MMO studios stepping up their game today as a distraction from the new shiny?
[Update: The Warhammer subscription option was a bug that should be resolved today, according to the devs.]