For snipers evasion will now resist 100% of force and tech attacks, it already blocks 100% of weapon damage via dodge chance. Using a leth spec and a 2-set this can be buffed to a 5 second duration.
Basically it's become guarded by the force on crack. 60s cooldown no resource or health cost, off the GCD with (and we aren't sure yet) only the pre-requisite that you stand still.