Final answer:
Creating separate countries for Shia and Sunni Muslims could potentially lead to less religious conflict and more political stability, but this is speculative and would depend on many other factors.
Step-by-step explanation:
If the Shia and Sunni Muslims each had their own country, it's possible we would see less religious conflict because the sectarian strife that currently exists in Iraq might be alleviated by the separation of these two religious groups into different nations. This has the potential to result in more political stability within each new state, as each would be governed by leadership aligned with the majority's religious beliefs. However, this is speculative and relies on several other factors being favorable.
Additionally, it is important to remember that countries split along religious lines do not necessarily guarantee more religious freedom or greater cultural diversity; these outcomes would depend on the internal policies of each new country and how they decide to interact with one another and other nations.