Ya, i think Kevin Warsh will be under immense pressure from Trump.
But i also think he will not want to sacrifice the US economy to appease him and his allegiance to WS and what they will be whispering to him will be strong.
What i could see happening (hope) is that with Jerome Powell staying on the Fed Board, and Kevin being just one vote, they can create a situation where Kevin gets to pretend he is pushing for what Trump wants but allowing Jerome to always gather enough votes to, out vote team Kevin. So he can say to Trump, 'I am trying but i am only one vote'.
We know Jerome is ok taking the Trump heat and at this point i actually think he is taking some enjoyment of sticking his finger in Trump's eye.