Between the two gun stores I frequent, I think combined they have half a dozen .357 lever guns of various make and model. The demand isn't there as much as you may think. Would I want one? Sure. Can I get one? Of course. Is that what sells? Not in this age of tacticool special operator call of duty wannabes. Black plastic, aluminum and rails are what's popular. Not cold.steel and polished wood.
I know a lot of gun people. None of them care about the Tokarev round.
A new production American made SKS does interest me. Produced in various calibers and barrel lengths. But its greatest competition would be the American made AR. The SKS is a good rifle, but it has its drawbacks. The sights are a hold over from the 19th century. The dust cover doesn't allow for mounting good iron sights, or decent optics. Also, price point. A modern SKS would cost as much as an AR, or more. I wouldn't expect a wood stock or a fixed magazine. I'd expect a tactical plastic stock an detachable magazines (not the duckbill).
The demand isn't there on a high enough level. Tooling isn't cheap. To even break even, thousands would need to be sold on per order. And that level of sales would need to be long term sustainable. It won't be. The demand for these ideas is so minute on the grand scale, no company is will into take the risk.