Thor: Ragnarok begins shooting on Australia's Gold Coast on July 4th, and the Gold Coast Bulletin has a piece up looking at what exactly the Marvel Studios production is getting up to in the area. As you can see below, a number of large sets are being constructed at Village Roadshow Studios, and they appear to be parts of Asgard (a sign perhaps that this movie will create that realm with less CGI).
Shooting is expected to last until October, and director Taika Waititi told the site the following about working on the movie for Marvel: "I’ve been hanging out with Chris and I’ve been working on the script with the writer, designing swords and things and looking at pieces of armour. I am an outside choice for Thor for sure - even I see that - but that’s what’s good about Marvel, what’s great about it. They’re able to do that and it’s paid off for them - getting people who aren’t the natural choice. You see it again and again, so I’m very comfortable in the role. I’m weirdly relaxed."
Interestingly, the site goes on to mention that production crew members have been working on props, costumes, and sets for months now, with the latter said to include "several spaceships." Seeing as Thor: Ragnarok is a cosmic adventure, that makes perfect sense, but it's going to be interesting to see them for ourselves when more about the movie is released as we get closer to its 2017 release date.