I don't think we'll get a notice of event items for a two reasons, though I'm sure there are more. One and probably the most important knowing in advance, even if it's a day prior would allow players to plan their spending or lack thereof. It could cost Oasis money, so that's probably a no go. The second is that decisions are probably made last minute as to what to include or remove from events. If they go ahead and state what's there, it's essentially making a promise they might not be able to keep which in turn brings about backlash they likely don't want to deal with.