From @JBHuskers: Could 3MB ever have a serious run? Maybe if a more established star from the upper midcard joins them?
The chances of it happening are very slim, so my answer is no. It's not really a talent issue because I think Drew McIntyre, Heath Slater and Jinder Mahal are all talented wrestlers. The problem is the group has been booked to lose so much that fans are never going to believe in them as winners. There are reasons why it could happen, though. Like I tend to remind people whenever this kind of thing gets brought up, just look at Mark Henry. They booked him to have sex with an old lady like Mae Young (rest in peace) and she gave birth to a prosthetic hand. About a decade later, he became a World Champion that likely cemented his place as a Hall of Famer. The point is that anybody can recover from being booked like an idiot. Adding somebody else to the group be bad for that person. Three of them, plus Hornswoggle, is enough. They might end the group at some point to try each guy in singles, but I don't see the group growing.
John wrote at WhatCulture from December 2013 to December 2015. It was fun, but it's over for now. Follow him on Twitter @johnreport. You can also send an email to mrjohncanton@gmail.com with any questions or comments as well.