Here is my preliminary wishlist
1) Feeder series. F3 or GP2. It would also be a nice intro to those less skilled
2) More advanced driving system and FFB. By all means, have all the assists you can deliver, but make these cars drive like F1. In 2014 the driving is actually better than 2013, but they don't feel like F1 cars. Game Stock Car F3 feels more like a racecar. There is no grunt.
3) Better setups. Keep the simplified system they use now, but give us something more advanced.
4) More intuitive on-board menu system for brakes and throttle. Frankly, I don't care, as I am using Xpadder so I programmed 1 click buttons for each choice, but if you are driving an F1 car you don't want to have to push buttons like if you are playing an accordion just to change the Throttle.
5) Get the vintage tracks and cars back, but this time make them drive like vintage cars. That means H-pattern shifter.
6) TELEMETRY!!!!!
By the way, I realize that much of what people want on these simracing forums flies way over the head of most gamers that purchase the game for a fun Saturday evening with friends. However, we are also a very vocal lot. We make videos, we write reviews. We make video reviews. If we are unhappy and give the game a crappy review, how many Saturday drivers will not buy the game based on those?
And for pete's sake codies, a bit of pride. Buy yourself a copy of Game Stock Car and AC. Look at what GSC offers for half the price (and a free update every other year). Don't you want to produce the best game you can?