bedir than
Full Moon Storyteller
The legends and myths that inspired Al Qadim are both pre and post Islamic. They also cover a broad range of cultures that interacted and switched ruler/ruled frequently.Why would that need to be factored into a fantasy setting? That is, unless it is specifically designed as the D&D version of a specific time and place. No D&D setting, afaik, does that: they're all fantasy amalgams of a range of different ideas, whether of a specific culture or not.
To honor the peoples a new Al Qadim should embrace a selection of creators from several of those overlapping and individual cultures. As a Near Eastern Cultures and Civilizations major and formerly functionally fluent modern Arabic speaker I know enough to see the harms in the old books that helped inspire me to go on that path of learning.
A new Al Qadim would be a wonderful product.