Yes some do seem to be up now and have been for a few days but I never posted anything because at the moment it all seems exactly the same as summer 2012. Ryanair strangely seem put routes on sale with the same timetable as the year before and then schedule changes are made on a lot of routes at later dates. I think it's so they can start selling tickets but haven't yet planned a timetable/schedule just yet so all I would say at this point, is if you book a Ryanair flight from April 2013 onwards, there's a fair chance of you not actually going at the specific time it currently says, or in extreme cases, it might be a slightly different day. I have seen it happen, particularly with Ryanair! However if you are flexible and bear that in mind and are very happy with the price, I dare say you don't really have anything to lose!