The Pokemon Direct that aired on June 5 showed off a new trailer and more details for Pokemon Sword and Shield. One of those new details was a bit unclear; the trailer and subsequent clips showed Pokemon roaming the overworld, similar to Let's Go Pikachu and Eevee, but we also saw a random-style encounter in the tall grass. So, are there going to be random encounters or not?
From what we can tell so far, it seems like random encounters are mostly, if not totally, gone. The Direct showed a variety of Pokemon roaming the overworld, much like in the Let's Go games. You encounter these wild Pokemon in something called the Wild Area, which refers to the expanse of nature between cities; in the Wild Area, you'll encounter different Pokemon based on your specific location and the weather. You initiate battles with these Pokemon by running into them, though some will chase you down once they spot you.