I have all my suit jacket sleeves tailored to the wrist, and your watch should pop if it's big and your shirt sleeves should reach a touch longer. You should feel your suit jacket when you move, i.e., you want it fitted.
Body length is fine, yes, it's going to be more fashion forward but it's much more accepted now so don't expect any strange looks. The days where you had to wear a suit that covered your entire butt like an overcoat are long gone.
The only way I could see you needing to size up is if you're significantly taller than 6'1".