I cannot say i am hyped about the Barbarian class (the cipher sounds exciting though). I've never played barbaran in all my BG/Icewind Dale campaign.
I wanted to propose another type of class.
Since we are soon coming to the stretch goal crafting..
What about an engineer class ?
Skilled in guns/pistols, able to craft bombs and traps, creating a wall reflecting bullet, shockwave...etc.. (yeah one of my favorite game is Arcanum, indeed lol).
As for crafting more than adding plans that usually aren't better than the loot you can find. Wouldn't be better to add a way to customize your equipment with a limitation..?
Like only 3 slots on each weapon/armor.
For example on a gun being able to customize, the range , the load, accuracy, shooting rate of the gun..?
I always thought that the best crafting model i have seen (even if it was really limited) was the one done on Jagged Alliance.