Will the requests for healing for someone who has passed, gone to the light and then returned in their next incarnation, receive the healing requested for them using the Lightworker Healing Protocol, in either a People Clearing or Spirit Rescue session?

This is very much the case. And so it represents yet another benefit of the healing you do and teach to others because it can reach well into the future and provide a benefit at a future point in time beyond the current life. This speaks to not only the continuity of the soul, but of the divine realm in how it functions steadily and unerringly across the eons of time to carry forward the projection of Creator’s plan for the universe at all levels, even down to the fate of individual organisms like human beings, and their journey. Nothing is missed by Creator’s awareness, nothing is unimportant, no detail is too small to be considered and attended to. This is also a good illustration of the power of the divine human to have not only a partnership with the Divine but a partnership transcending the lifespan and reaching well into the future to receive assistance and support. This is your birthright and what it means to be a part of Creator. Creator’s future exists in part through you and all the other human beings and other beings of light. And in the physical, the progression and expansion of possibilities is the plan and will be very much facilitated by healing on all levels in every way possible.