We've been sitting on these dates for a while due to a lack of time to do updates, so hopefully you've all been paying attention. It's mostly the US dates that are sold out at this point.
Let's start with the band hitting the road in two days with their predominantly Californian dates leading up to and around the Coachella festival this coming weekend. It will be the band's first performance since July last year, and hopefully some insight into what they've been working on in the past year. Hopefully we'll see the return of Eric Judy, and with none of The Shins' tour dates conflicting with Modest Mouse's, maybe Joe Plummer will be back as well.
Secondly, in the past two weeks a lot of the gaps in the European tour have been filled in. Check the tour page for all the details. Club and festival dates have been added in Norway, Luxembourg, France, Germany (more) and the UK (more), bringing the total amount of performances so far to 36. Tickets appear to be on sale still for all of these and the only European show so far listed as sold out is Brighton.
Lastly, three of the shows in the UK have had their venues upgraded to larger venues, that's in Bristol, London and Leeds. Your original ticket is valid, just make sure you take note of the venue changes.