If we go for a change request, will it change the phase of Life Cycle

No

Life cycle should not be changing at the Change Request submittal time. The CR has done nothing to change the documents involved, only creates an intention to change the documents. Once the CR has been approved and a change task assigned, then the person assigned the task will revise the documents required. The revise process should bump the revision and change the lifecycle from released to one that the person can work on the parts with.