If you have not valor capped, well you might want to consider it now as you're going to want as much valor as you can by tomorrow.
TBH I was expecting the patch on the 27th but it looks like we have 8 hour maintenance tomorrow. We have NEVER had a 8 hour downtime a week or 2 before a minor patch was released in WoW history so I think it's safe to assume that patch is tomorrow. So I'm giving you a reminder to valor cap immediately because Blizzard won't be reminding you.
Edit : CONFIRMED 5.4.8 release TOMORROW 5/20/2014
https://twitter.com/Rygarius/status/468475832076627968
Get your toons valor capped ASAP!!!!!