More Speculation on Barney's Bride

I have come up with new clues as to whom the bride could be. First, what challenge was Barney accepting? It would make sense that Barney is accepting the challenge his father gave him. In this scene, Barney admits that he may have met the girl of his dreams already, but was very regretful while saying it. Barney seemed to have a mutual breakup with Robin, but he could have certainly regretted his decision. But it seems that he would regret his inaction with Nora more. The challenge for Barney was that Barney had to find the girl of his dreams, and when he sets up a date with Nora, he accepts this challenge. But, in that same scene, the HIMYM geniuses give us a little misdirection with Robin's longing stare towards Barney. Second, you have the mantra the new is always better, but is it? Barney and Robin (kinda) agree that new is better, and reaffirm it by Barney returning to his past. Something is off with that statement, and I think that Barney will realize that old is sometimes better. But which past girlfriend will he choose? Nora or Robin? Lastly, did it look like Lily was wearing a dress fit for the maid of honor? Though the series would say otherwise, I doubt that Robin would not have Lily as the maid of honor, though she promised Ted to make him the best man. Barney would undoubtedly have Ted as the best man, as shown by years and years of saying that Ted is his best friend. So Barney's best man is his best friend. Robin's maid of honor should hypothetically be Lily. Lily was wearing a bright pink dress, so I believe that she may have been one of the bridesmaid. I have never actually known the difference between the maid of honor and a bridesmaid by appearance, but it did not look like Lily was the maid of honor. But, that is just my opinion, and my fashion compass may be uncalibrated, so it could have very well been that Lily actually was the maid of honor. As reference, Robin was wearing a lilac dress of comparable length when Robin was the maid of honor at Lily's wedding. Also a nice side note, how awesome would it be if James's father Father Sam were to officiate the wedding. That would be the second wedding this show has had a officiator with a Stinson connection. Now I really can't wait for next season. I still hope that Nora is the bride, but I would not be disappointed if Robin was. Hopefully the show creators won't throw a random person as the bride because as of this point, everyone is expecting either a Barney-Nora or Barney-Robin marriage.