The folks in silicon valley are smart, organized and wealthy. They've purchased the requisite members of congress who have shown quite plainly that their interests diverge significantly from those of the White House and its current, er... "administration."
There will be no change at all, or at best, cosmetic changes.
Of course, the best course of action would be to give any foreign national who moves here for more than five years a green card, a handshake and expedited citizenship if they start a business that employs Americans in a technical capacity at standard wages for their position of expertise for more than five years.
That's a 10 year commitment. Their kids will have grown up here. Nobody is moving back to China or India at that point. We get a new generation of smart, entrepreneurial Americans.
Being a rational course of action that takes advantage of foreign expertise and money for the USA's benefit, it will never happen.