Oumuamua was interesting and fairly unique in some respects, so it's a shame we're not going to be able to catch up with it anymore. Borisov appears to be just another comet. I bet all we get in terms of interstellar objects in upcoming decades is going to be a whole bunch of regular dirty snowballs. Studying the effects of interstellar medium on rogue comets is going to be valuable knowledge, of course, but I'd rather have a gander at some oddball asteroid.