Practice mode:
-Penalty in practice mode
-Artificial turf halls
-Possible to train on the teams stadium.
Career mode:
-Fair play prize, player of the year and so on...
-Champions league, UEFA Cup, World Cup 2006 and so on...
-National teams in Career mode.
-Possible to select i.e. Man U in career mode at the beginning. I hate to come to Man U, and all the big players is retired.
-In FIFA 2003, norwegian (and of course other countries lower divisions) 1. and 2. division teams + the Tippeliga (Norwegian premier league) was included for relegation and promotion. Sure the 1. and 2. division teams didn't have very updated squads, and the kits were basic. I hope FIFA 2006 have something like this.
-Practice mode in Career, and when the season is over, you can have trainings and arrange friendly matches until the season starts again.
-Indoor trainings in artificial turf halls when it's winter outside.
-Real fixtures, or at least let the season start at the right time of the year (i.e the norwegian leagues starts in the beginning of April and ends in October/November.
National teams:
-You can decide your squad before every game by selecting players from your country (i.e. if you play with Norway, you can add any of the norwegian players in the game to your squad, if you understand)
Referees:
-More referees, and different whistles, different lines-men.
-Better refees. Handballs, human mistakes both in offsides and other situations like penalties and freekicks.
-Referees discuss with linesmen if he's not sure.
-The referee doesn't whistle every time the ball is over the line, only if the players don't know it.
Weather:
-When it's winter, it could snow som places (i.e. in Scandinavia), and if it's not snowing, it could be snow surrounding the pitch and snow on the stadium roof. If it snows, the snow lays down on the pitch, or if the stadium has under-heat it melts the snow and the pitch gets slippery, and that affects the players and the balls characteristics.
-The pitch also gets slippery if it's raining, or if it just have rained.[
Gameplay:
-More control over the players. I remember in FIFA 2003 and earlier, you could tackle the keeper. This is impossible in FIFA 2005 (and even in CL 04/05).
-Added time to last a little longer (i.e. 3 minutes added time lasts for 1.5 real minutes or something like that)
-Show how long added time has lasted.
-Select time and season.
-You can set players in warm-up before substitutions.
-Injured players gets threatment from the teams doctors
-If you have used all your subs, you can take off injured players.
-Substitution animations.
-Select which players who should be in the square on corners, free kicks and so on...
-Select which players that takes left and right freekicks, not only one player for both sides. (Just as we select who should take corners from left and right)
-Have a list of which players that takes penalties in a shoot-out.
-Discuss the number of subs with the other teams manager before match.
UPDATE: -If one team gets over 3 (?) red cards, the match ends with victory to the other team. (Is it 2-0 the match ends?)
-Bring back the corner and freekick system from CL 04/05, but at freekicks, we should be able to decide the curl of the ball. I suggest that we have the little ball in the lower left corner, and on the ball, we have a slider that moves from left to right to left to right and so on, and when we press D, the slider stops (if we want left curl, we press D when the slider is on the right side of the little ball), and after that again, it comes a slider that moves up and down, and if we want left curl with a little banana, we just stop the slider on the bottom of the ball, if you understand, and then we press D for the power just as in CL 04/05.
Other:
-Indoor stadiums (Futsal, artificial turf (?))
-Modelled subs and managers sitting on their bench (not only bad models, but the player models sitting there)
-Built-in Creation Centre
-Youth teams
-Fix the night-lighting of the players. They aren't made of metal, you know...