I don't think that Robin will change her mind. It seems to me she is just having cold feet, and this can happen before wedding even when everything was perfect. Especially makes sense with somebody like Robin who never wanted to be in a relationship.
It isn't really my favorite episode though. Barney and Robin's father spending time together seems like a great idea that could end up having fun story lines since Barney always wanted a father and the father always wanted a son, but it was not very entertaining in this episode.
Lily, Marshall and Ted packing was fun in some point, but not the whole story, just little moments, such as young Ted with a fanny pack and the three of them back in the days dressed up as Destiny's Child.
It isn't really my favorite episode though. Barney and Robin's father spending time together seems like a great idea that could end up having fun story lines since Barney always wanted a father and the father always wanted a son, but it was not very entertaining in this episode.
Lily, Marshall and Ted packing was fun in some point, but not the whole story, just little moments, such as young Ted with a fanny pack and the three of them back in the days dressed up as Destiny's Child.