They will never be able to produce a kickstarter's amount of minis. Most of their manufacturing is in Texas, but for the massive volume needed for one of these projects, they have to outsource it to a factory that is better equipped for mass production.
It's basically like this (making up numbers): They need 2 machines to do their daily business. A kickstarter's worth of minis, which occurs once every few years, needs 10 machines to make them in time. Why would they get 8 more (incredibly expensive and large) machines that remain idle 90% of the time, when they can outsource it to a factory that has the machines already at will print on demand?
That's why China will always need to be used for these projects. It's not that they can't bring the production back, it's that it's economically unfeasible to massively expand operations that will rarely get used.
At least, that's how my understanding of it works.
After the dust settles with new trade agreements, tariffs and what ever else happens, it may actually be cheaper to buy extra machines and make stuff in Texas. We will have to wait and see what happens as our relationship with China will surely change for better or worse.