Unfortunately WCG was in different setup than WTS.
WCG was led by one person (Armstrong) and when he died it caused disruption in the organization's course. There was a new leadership (Tkach) that replaced the previous one. So J. Tkach was able to change their path. He was an absolute monarch.
In contrast to WCG, WTS will not go through such disruption when a GB member dies. The politbyro simply appoints a new one and the rest of the GB continues to rule. If WTS is still one-man show as in the Rutherford era, probability new Caesar can make big changes would be much higher. They are now not able to make rapid / big changes comparable to what autocrats Rutherford & Knorr did when they took power.
If the whole GB dies at one moment, then it would be a different story...