They will "Never" come out and change it in a straight forward manner. They will put some type of spin to it. For example they might say;
A blood transfusion is acceptable if the Blood has been fractionated in a sterilized container to recognize its use as something holy to Jehovah. If such is the case, then the conscience of some--- might allow them to accept a blood transfusion with the understanding that blood belongs to Jehovah and just like the Israelites shared a burnt offering with the priest, a dedicated member will share the blood sacrifice with the Great High Priest, Jesus.
New Light