ACLU says 'We'll see Trump in court'.

https://www.aclu.org/blog/speak-freely/well-see-you-court-20-once-muslim-ban-still-muslim-ban
But it’s still religious discrimination in the pretextual guise of national security. And it’s still unconstitutional.

So the new executive order is, like the old executive order, intended to target Muslims. That intent violates the first principle of the Establishment Clause, which forbids the government from singling out particular religions for favor or disfavor. 

The fact that the government has repackaged the ban does not alter its intent or effect
The executive order has other flaws as well.

It maintains the first executive order’s unilateral reduction of the annual limit on refugee admissions from 110,000 to 50,000. That reduction, imposed unilaterally by the president without consultation with Congress, is unauthorized