They're not going to remove battling with wild pokemon, weakening them before throwing a ball is a key part of the series and from a gameplay perspective there needs to be some way to grind exp. What's more likely is that the models seen in this pic are overworld encounters replacing random encounters, and that the "catching like in Go" is just when you actually go to throw the ball that you can use safari zone-style bait/rocks/berries and time or curve your throws for a bonus. This would add a bit more to the gameplay and not remove a key feature.