Mining, hunting, trade, exploration, crafting, dungeoneering are all expected to be available in 1.0. Later, we hope to see other professions such as agriculture, pilot, gladiator (pve arenas), beastmaster, etc. And that's just the non-building professions, not including things like city builder, dungeon builder, etc. There will be dozens of viable playstyles! That's what makes Boundless work as a sandbox game, you play it how ever you want.