Hopefully they work on the economy of the game. I really like how Shadowrun handles money, giving money to players for damage dealt to players (kill stealing doesn't lead to losing money), and you get money for picking up, carrying and scoring the objective. This is all doled out to players based on the amount of time they carried the objective, or the percentage of damage they did to a player that ends up being killed. It is really clever how they did it in Shadowrun, and makes that game's economy very deep and balanced.
I also hope they have a "Gift money" system like SR as well, this way you can customize your teams build, give a teammate money for a gun he is good with, or money for armor, nades etc. This would be a great addition I feel and wouldn't mess with the core of Counter-Strike too much. Instead of buying a gun then dropping it for your teammate, you could also just give him the money to buy it. Adding the option to give players increments of money to each other would also probably make save rounds a little easier for the losing team.
In CS terms, a player could get money for carrying the bomb, or escorting hostages to the objective, the closer you get the more money you get, then you get money for detonating the bomb on top of that, or escorting the hostages all the way to the safe zone. This way, players get credit for the work they did leading up to a successful score, even if they didn't end up completing it. For the opposition, a kill on a bomb carrier or hostage escort could net you more money. Assisting in kills with flashbangs could be worth money, i.e. you throw a flashbang then your teammate picks up a kill on someone that got flashed by you, you get a little money for that assist.
Little things like that I think could go a long way to making Counter-Strike's economy more complex, but more importantly more fair and balanced.