Only slightly. Because like I mentioned, I will use the Variant rule about applying the skill to any applicable ability score. So if you're going to balance... it's a DEX check + Athletics if you have it. Or if you are going to climb, it's a STR check + Athletics.
It all comes down to how granular I feel I need to break out these individual physical actions. 3E did the completely granular route and have Climb, Jump, Swim, Tumble, and Balance all as individual skills... 4E combined them into Athletics and Acrobatics... I'm going to combine them even more and just put all of these physical actions into one "You're physically gifted" proficiency and apply it to whatever ability modifier makes the most sense.
So a tank Fighter will be making climb and jump checks probably at around a +5 at 1st level (+3 STR / +2 Athletics prof), and balance and acrobatic checks at a +1 or +2 (-1 or +0 DEX / +2 Athletics prof). Which I'm okay with, because the frequency at which players at my table ever need to check their balance or make acrobatic tumbles is so slight, I don't want to waste a skill in the game for it.