Actually we wanna implement the Gold Charges and test them in Frontline before we launch the game on Early Access, so we can fix any bugs related to them first!
Also our aim is to add all the Gold Charges, and I believe it's what Teddy will focus on next, now that the leaderboards and quicklevel are in place. Fred recently finished most of the graphics for the gold charges, as well, which is what Teddy needed to start working on it - it gets kind of annoying to start implementing stuff only to have to pause it and wait for the correct graphics every now and then!
So, gold charges are coming Soon, or perhaps rather ASAP™!