So as we all know so far the only changes Argonians are getting in U7 is a few more points when the drink a health, stamina, or magic potion. So ZoS if you want to keep this passive in all I gotta say is make it worth while. Instead of just health magic stamina potions make it effect all form of potions like the craftable ones such as detect immoveable weapon power and so on and instead of a few more points make it a flat % bonus say 40% more power from potions. That way it's worth it cause say a Nord character and Argonian character both are in Cyrodiil and there being chased by some zergs and both have a invisibility potion that last for 12 seconds difference being the Argonian will have 40% more time making it 16.8 seconds.

Now which character will you chose when you're being chased and only one invisibility potion and you had to make it count cause it means life or feeding the zerg. Plus make other craftable potions so much better for Argonians. But again IMO this would make there potion drinking passive worth it if they keep it in.