I would like to see the friends section revamped. More info of my friends and their progress would be nice. The integration with facebook should be able to share, pull pictures, and ability to login to my.striiv.com to see more information.
I would like to see a tab on the app with the ability to track a whole workout depending on what you are doing i.e. running, swimming, lifting. Sure it will not calculate steps but it would calculate the user's weight, height, speed, weight of resistance to calculate calories burned and add to your daily total. Websites can do this so it should be a simple addition.