The masterpieces usually took 2-3 years
Well considering they've already written most of the album, they'll have time to go over those pieces, refine them and touch them up before even going in to re-record them for the album next spring. Then while they wait for the album to be mastered and pressed, they could probably do a short tour in Europe, ya know, to make up for the lack of one this year.
Then the album gets released about a year from now or so, then they begin the tour in support of the album in late winter/early spring of 2012, and tour for most of the year (8-10 months maybe, with a month break in between).
-Marc.