Slowly but surely, TE4 development progress. Since last June, the main additions are :
Sliding animations
New umpire voices
Better & easier controller configuration
Smoother player animations (many bugs have been fixed !)
Outfit Modding and new & easier sound Modding
Gameplay balancing
Many little things here & there
The game is now a lot more complete than TE2013, but the gameplay still needs some tuning & balancing.
As a reminder, here the current main improvements compared from TE2013 :
Better visuals with new 3D players, stadiums & NPCs
Reworked physics so everything is more realistic ; as the main example : now if you hit a ball when mispositioned and/or too late, it'll always have a chance to end in the net or go wild
New menu design
Men Tour starts in 1973 & Women Tour in 1983
Junior Tour
Future fictional years are generated in real-time, so each playthrough sees different top players in the future
Olympiads
3 new player styles to match more closely the global strategy of what I'd call aggressive defensive players (ie: players who base their game mostly on defense, but also can feel pretty aggressive)
Improved artificial intelligence
Dynamic animation system so the player always hits the ball with the center of his racket (as long as it's not too far from him, or really too much on the body)