User blog comment:2ks4/Triple XP session Wednesday, March 16, 2011/@comment-3455248-20110327031912

Yes. Rockstar has indicated that these occasional informal Triple XP sessions will be ongoing. They are only announced the same day via Twitter/Facebook, though, so you can't predict when the next one will be - generally one or two each week lately. The next known formal Triple XP session will be March 31 17:00 - 20:00 Eastern during the Rockstar Social Club PSN event (Triple XP on Xbox as well). Follow the link in the blog post for more detail.