[Flaropri]

To expand on the main question: the "continent" we've seen the most of, Indar, is primarily desert in climate, but it has canyons, dunes, scrub-land, spars woods, and the like within it.

We've also seen a few images of the other two continents that will come out on launch (with more to follow later), including thick forests, grass plains, and ice-covered hills. I wouldn't be surprised to see wetlands and swamps make an eventual appearance, though not necessarily within the first 3 continents.

Unfortunately, due to design decisions, it will likely be some time before we see a true mountain, but I'm sure we'll have many large hills, canyons, and the like, as well as eventually rivers, lakes, and such. As I understand it, they (as of last month at least) hadn't finished with the texture/animation of water, which is probably why they've been showing off Indar as much, but they definitely will have bodies of water in the game, at the very least beaches and other coastline terrain.