Idea for fc25 (or fc24 if its being updates still)
Ultimate Team
Firstly, Nothing big, just for sbc's you could have a way to put a team with a certain overall without, or a way to do squad builder without it using players in your squad. I feel this would make it easier to do an sbc without having to think, "is this person in my squad" or "will this make it (incert number) overall"
The other thing I think could be in ultimate team is an option to only go against players that haven't bought in game currency, (if you yourself havent) sort of like an f2p server/mode. It could make people not feel like they need to pay to win, so they can actually get to higher ranks.
Player career mode
Firstly, I want to say, love the idea of targets you complete to move, but, alongside do this this and this to get a contract, doing certain things, like breaking records, player of the year, winning balon d'or, things like that, could get clubs to want to sign you.
Secondly, probably gets said alot, but free roam, weather it's a whole city, or an apartment, house or mansion you can buy things for, and buy bigger houses, it would be cool, it be a big thing to ask for, but if done correctly and well, would certainly be an amazing feature, something like the standard menu, with an option of 'free roam' or 'your house' could work.
Thirdly, and the one that likely wouldn't happen, would be ai commentary, once you play matches for a while, you've likely heard every like they have to say, with ai commentary, every match would be unique with it's commentary. It would be cool if you keep taking shots from afar and keep missing, for the game to be able to tell, and say something like "if he keeps this up, they will never score". It would also add to immersion.
Lastly, the ability to watch other teams matches, unless this is already n the game, being able to play for burnley, but be able to go watch the Manchester Derby, after or before your match, or just watch the highlights. This could work with free roam as if you have a tv, you could watch a match as it goes on, or the highlights of one that's done.
manager mode
The first idea for manager mode: managers other than you being sacked/retiring. If pep guardiola gets city relegated, odds are the board will not be happy, so if they could be sacked, retire, or even go to manage a different club,then get replaced by someone else, randomly generated from all the clothing and names in the game, then that would make the game feel more realistic, otherwise you could get pep or klopp at a club until they're over 100.
Number 2 is kit sponsors. After making your kit, you could be greeted with a screen that shows a number of different company's (real or fake) with objectives to do to get extra cash, or so they don't decline being the sponsor.
The least likely of the three to get I (if any) is a more advanced stadium maker, this doesn't mean to get rid of the current on, just to have an option to make it with templates or to make it using different pieces you can move, or being able to make a set of seats one colour, another a different colour. Could make for some great creations.
One last thing, please, along with the new rush thing, please add the journey back, I loved playing the mode, and would love to see it back. It's one of the main reasons I got fifa 19, and when it got removed for volta, it made me not get fifa 20 as fifa 19 has the things I played, so a new journey would make me definitely grt fc25, sorry if this bit want very good, and sorry if these features arnt good, hopefully at least one of these can even be considered.