Meshuggah has posted a bit of an update: http://www.meshuggah.net/news/
Seems like the band is probably not going to tour much for the new album "Catch 33" as they would rather wait until they have something new they can actually perform live. As mentioned before, the new stuff record is one 40+ minute track broken into multiple sections. That's not exactly the sort of stuff that translates well on stage.