Wargames Factory the guys that make the 28mm hard plastic romans and celts have an interesting idea where they are opening up there production process to their customers you can put in suggestions for figures you would like to see and if they get orders for 1000 sprues or 500 boxes they will produce them one sprue having around 5 28mm figures a costing around $5
But the numbers aren’t as huge as you may have been led to believe! If we can get a hundred people to promise, between them, to buy a thousand sprues (averaging 10 sprues each) of any given subject, then we are in business! That’s not to say that selling 1000 sprues will cover all of our costs, but the combination of 100 unique purchasers and 1000 total sprues sold tells us that there is enough interest in that sprue that it will most likely do well once it reaches the wider wargames market and we’ll be able to at least break even!
At the moment several suggestions have hit the magic number and it look like Celtic Cavalry box set with alternate riders so you can use them as Roman auxiliary’s will be out soon along with some Celtic Chariots. You can see some WIP pics and sculpts here
You can see the current list of suggestions here you can vote/pre order and make your own suggestions as well.