From the list as given:
1. Mystara/Known World
2. Birthright
3. Deities and demigods - for all races
Not from the list:
1. A conversion guide comprehensive enough to facilitate conversion of monsters, characters and adventures from any D&D edition to any other.
2. Rules for non-typical combat: army-v-army mass combat; naval combat; aerial dogfights, etc.
3. Worldbuilding aids, guidelines, and suggestions (though I could probably write this myself I'd rather see someone get paid to do it, and the odds of that someone being me are extremely slim)
4. A guide to building and maintaining your [stronghold/castle/laboratory/temple/guildhouse as per your class] including costs, time requirements, people requirements, and other useful details.
5. A guide to genetics, reproduction, etc. that explains what can breed with what out of all those races and why (e.g. can a Half-Elf and a Half-Orc produce a child and if yes, what will its racial game mechanics look like); what the offspring will be; what the odds of pregnancy are in each case; how shapeshifters reproduce, etc., etc.
Ideally each of these would be standalone products; for example if the rules for non-standard combats are stuffed in some setting book that doesn't otherwise interest me, they might as well not exist.