1. Season mode
2. More logos in the Caw system
2.5. Better Create-a-logo in the CAW system
3. More and better original themes in the CAW system
4. All the moves that were missing from No Mercy
5. The ability to fight backstage and to throw your opponent off the ramp
6. Ultimo Fucking Dragon!
7. Detailed options for reverals (like No Mercy, but even more detail)
8. A "scroll faster" feature in the CAW menu
9. Entrance Gear
10. An enhanced create-a-mask feature
11. More meaningful size and weight differences (cruisers can't slam 350 lb guys, 350 lb guys can't do lucha)
12. Second rope moves (Matt Hardy's V1 legdrop is off the second rope, not the top)
13. No more of that Boss crap (let's have real wrestlers... like Ultimo Fucking Dragon!
)
14. In the season mode, make each belt (assuming it will be like No Mercy) accessible only to the proper weight/gender classes (only guys under 220lbs can be cruisers, etc) until you can unlock a feature that lets you take any belt with any wrestler.
15. Classic wrestlers like in HCTP.
16. A Hidden story mode that can only be unlocked by getting everything in the game without cheats.
17. If Nintendo ever gets around to going online, online tournaments and updatable rosters.
18. Customizable real wrestlers (in WMXIX you can't change costumes or music).
19. 6 alternate costumes (6 is better than 4, and 2 is just not enough)
20. The ability for more than one person to play the same guy at the same time (WTF was up with that in WMXIX?)