Possible other plots they could cover instead, based on the original movie trilogy:
Prequels
1. The not so distant future where true AI begins and evolves.
2. The battle for freedom/supremacy, humans vs machines.
3. The creation of The Matrix, alpha, beta, v1.0 and v2.0
4. The Matrix 3.0
5. 3.0 Reloaded
6. 3.0 Revolutions
7. The Matrix 4.0
8. 4.0 Reloaded
9. 4.0 Revolutions
10. The Matrix 5.0
11. 5.0 Reloaded
12. 5.0 Revolutions
13. The Matrix 6.0 Morpheus' complete backstory
14. The Matrix 6.0 Trinity's complete backstory
15. The Matrix 6.0 Neo's complete backstory
Sequels (one of many possibilities)
16. The Matrix 7.0
17. 7.0 BSOD
18. 7.0 Revelation
Offshoots (possibilities)
19. Neo wasn't really the One?
20. The machine world isn't truly the real world?
21. The machines are actually saving humanity not suppressing them?
The amount of possible offshoots and potential sequels is mind boggling. Why reboot?