No, probably not another.
One reason is that the WT was going through an adjustment in its evolutions as a movement that will probably never be repeated. Eric Hoffer seems to have been proven right in his book "True Believer". Ray happen to be caught in the process as an honest person willing to reform the WT through scriptural insights but the conservative forces who wanted only to preserve what they had rather than sponsor a new revolution.
The old guard effectively crushed dissidence and now there is no one left who would dare stand out as Ray and Ed Dunlap had. The only way this leadership would ever see a descending voice again is if it has diminished to near demise and someone feels compelled to step forward to initiate revolutionary change. But would the outcome be any better then the present?
Jst2laws