I can't get Apple to confirm the next version of iOS is indeed going to be numbered 19, let alone whether they'll confirm they'll move the production operation to the US
Given that Foxconn would, if relocated to the USA, be the 15th-20th largest city and more populous than 3 or 4 states, I can confidently say that tech factories in general won't relocate even if a handfull of token factories break ground.