Mini is one of those makes like Porsche that have a certain look. Like Porsche, the style is the brand itself, so Mini isn't going to be releasing anything radically different in design for the foreseeable future, and the design style they have has been in place since 2001.
There's only so much you can do with a standard design style, but stretch limo with a Jacuzzi (doesn't the water slosh out?) seems to be within the parameters of possibility.