With how they neglect men so much, maybe a stuff pack just for men could be an idea?
It could come with a free update that adds body hair, the stuff pack could add some additional body hair options and a large selection of facial hair, some new hairstyles too including several balding hairstyles.
And the clothing selection could be chosen by regular men, men who don't care for dumb fashion trends, weird pants, etc. Just regular clothes that regular men like to wear.
Like some normal jeans in various colours without weird stripes, weird lengths, ripped everywhere or other weird stuff. Maybe some worn old sport shoes, old jackets, some new shirts with prints, and maybe some nice suits.
Maybe some new hats and sunglasses too, some gloves, maybe tattoos.
For objects maybe a furniture set fit for a bachelor pad, I think sims 3 had something like that in the Diesel pack.
Plenty of it could of course still be used for women but for this stuff pack men could be the focus for once, to finally get them some descent clothes and more beard and hair options.