It makes sense that they're bringing back RI for BVW2, because it added drama with the ability to trade places with your family member, and added a lot of interesting little dynamics within the game. I wouldn't be surprised if they ditch it again after BVW, because it's a special case where it adds to the game.
There are aspects of RI I like, and aspects I don't like, so I'm fine either way.
I like the finality of being voted off and that's it, but I also like it when a player I like has a second chance and has to fight each week to stay in the game. It also cuts into the time for the regular tribe stuff, so you get more combined immunity/reward challenges, which I didn't like.