Completing the PMR experience is like graduating from elementary school. Those fifth graders may feel pretty big , feel like they have just about done it all, but that is because they know so little rather than because they know so much. The joy of consciousness is in the learning, the growing, the evolving, and the becoming.
If you are pressing for an absolute here and would thus see my answer as step two of an infinite series (which is, as you well know, not a rational answer at all), let me just skip to the end of the: “But what about after that?“ series. Eventually, one would become one with AUM -- that is, share the view from the top -- become a full partner in the firm of MOG & MOG. So, you might ask, is that the end of the line? Is that where it gets boring? No, of course not — there is no end of the line, the joy of learning, of helping others grow, of caring, service and love, goes on indefinitely. AUM (the larger consciousness system) is not a topped-out absolute, nor a comatose moron on a feeding tube. AUM is a real, finite thing — a learning, growing, evolving entity, and as long as AUM remains an evolving system, the fun is never done.
After you give up the conceptual comfort of absolutes -- i.e., deterministic, limited, closed sets, you will find no logic or rational considerations that force an end to the evolution of a consciousness system other than capacity. And then, as was said in MBT, it may be time for a purge of the least significant bits, or perhaps an upload of the result of lessons learned (the accumulated content of AUM’s evolution) followed by a reboot to start over — to complete an even bigger picture of the consciousness cycle. However, now we have reached (or just passed) the limit of logical rationalization. Beyond that limit lies a fantasy that must, by definition, always remain just that.