My ideas are for console versions of the games:
I want more holiday themed decor and not just a christmas tree for christmas or a pumpkin for halloween. I want wallpaper and maybe a halloween party pack or something for a party. I think it would be neat if kids came to your house to trick or treat. I know you can have holiday stuff in expansion packs and sorry I meant to say for console versions. I would like expansion pack type stuff for console games, or at least the ability to have a vampire and all the accessories. I would also like seasons or weather. In the sims 2 there was rain every now and then but they didn't add that in the sims 3 pets for ps3. I also think it would be neat for sims to think of themselves sometimes. Like, I know you can set how much free will they have but if like a sim really needs to go to the bathroom they shouldn't have to wait for someone to tell them to go, they should just go. I think it would be neat for sims to have tats. I know in PC games you can probably have tats but not in the console versions. I also got annoyed when you could control the ghosts of your dead sims. In previous games if your sim died you couldn't control the ghost and the sim would come out of the gravestone at night. I also want to be able to watch my sim at work or school. Like actually watch them go through their day. I also wish there was a clothing store to buy clothes like in the sims hot date and vacation.
Lastly, I think sims should have accents. You pick their accent when you make them. Like, if you create a cowboy you can give him a southern accent.
Sorry for so many ideas.