I'll be releasing the next version in a couple of weeks and this is what I plan to work on for it.
A few new missions, one for the campaign and a few others available whenever the player feels confident they can be completed without too much loss of life. I think a jailbreak mission for Luna would be nice, I don't feel right leaving him in the cell all game long
I've been thinking about an upgrade function for the cars, like in HLA where you can increase the armor and such, but without the "breakdown" function. I think I'll be using the base mechanic for it and have already removed the >10 reputation limit for his joining mission. I'm not sure yet if there is a limit on how many cars the game can have, every update requires a new car in the ini's. There are now 7 cars, and if I give them all at least 1 upgrade level it would mean 14. I might skip the BTR and FMVA1, they already have enough armor and trunk space, but the others could all use more armor. I'm also thinking of adding more speed to some, maybe increase the trunk capacity of the Ford, GAZ and Jeep at the expense of their speed. It would mean that I would go back to armor levels closer to vanilla and they would be vulnerable if they aren't upgraded, but that's the cost of progress I guess.
I'm not sure what to do with the economics of capturing cities, I'm playing with the idea of adding a tax function for the Mayors. I think it's possible to add a loss of reputation if the tax is set too high, but I haven't really looked into it yet. And there's still the monthly payment issue. If we add a tax, it would be payed out in a monthly fashion and would not help much in the recruiting and maintaining of the milita. Maybe add a bonus when a city is first captured? But I have to work on in a bit when time permits, and due to all the testing needed, time is not abundant for that kind of tinkering.