IF 09X is wider, then yes, it would have to be a different design, or at least there is no precedent AFAIK in a variant even of double hull boats increasing width of the outer hull.
However, I am not convinced the latest picture in fact shows different beams. The problem with satellite images is that based on the angle at which they are taken combined with resolution they can play some tricks on your eyes. Its funny because initial impressions of the new boat, based on imagery at JN in fact assumed they are narrower than 09V.