What Perry said (termination of elders by Caesar's sword) might really eat up the bOrg from inside, but I don't see any proof that it's happening...yet! I DO expect this will happen in the future so I read Terry's words more in a prophetic sense.
In this scenario, an implosion, not an explosion, might seriously weaken BorgVader's DeathStar.
On the other hand, BorgVader might prevent total destruction of the DeathStar if he would introduce sneaky new light that would enable sisters to get more responsibilities. Many sisters are more intelligent that brothers and many are very, very loyal!
This war ain't over yet...