At first, I thought he’d be someone who was different from Goku. It looked like strength wasn’t everything to him, and his wish seemed a lot more interesting. But, I don’t believe that now. His story is just way too easy to guess. I think a lot of you might’ve guessed this to be the case, and it ended up being true. The idea behind the story isn’t convincing enough to be sold, really. It is down to bad writing, which has been an issue in Dragon Ball Super all along.
Jiren’s wish is a lot more clear now as well. It is likely that he just wants to get strong enough to take down the evil once and for all. That’s why for this one wish, he would even be ready to go against what he stands for, which is to kill this person. Maybe Jiren just doesn’t have enough power to take him down, and to me, it seems like that what he wants. I don’t think we’ll get to see the end of it anyway, so I guess talking about it doesn’t matter either. It is just that the character Jiren got a lot less interesting due to bad writing, once again.