I am expecting the following for the TE 2010:
I think these will add depth and twist to TE.
1. Tennis shop for our hard earned money on games of course.
2. Ability to customize the features of the player (Hair particularly)
3. Tennis raquet bought on the shop that affects the game. Like for example, real raquet have different features and different effects on play too. It would be nice to have that in TE.
4. On World Tour, Novice player would be to start with a wood raquet, why not isnt it? Then later on, can buy with better raquet on shop. Dont know if this will be implemented online

4. 100% Multiplay. That means, doubles Online/LAN have 4 human players too.
5. Animations that is unique to a particular player. That only that particular player will use that animation. Or probably we users can assign animation to any player and be a dedicated animation for that player.
6. If shop will be available, would it be fun to have gears ( raquet, clothes etc.) that depreciate/wears in time. That is we should buy again to replace those gears. Why not, we could earn money on game.