I think sticking with Boolberry but putting more focus on BBR is the best option here.

Too many people have fallen in love with the current name, but too many newcomers dismiss the coin based on its name alone - ive lost count of the number of times ive seen people "lolling" at BBR because of its branding in that hell hole that is poloniex troll box. I really dont see how that can be ignored.

Modifying the brand to simply state bbr instead of boolberry next to the current logo would be straight forward to do. Id keep everything else the same including domain name etc, just take the focus off boolberry where-ever the brand is most visible, we all usually type the name as BBR anyway.