Work permit/visa holders will see an increase in workload (with a "work-more-or-eff-off" note, along with possibly a paycut too) Even pay negotiations on open offers, making it seem generous tha offer doesn't get cancelled.
Personally know a couple of friends who are in the US (with H1Bs awaitng transfer/extensions) facing this particular situation now.
Hiring is fucked. Tech hiring and ex\mployment more so.
Seems every employer treats employees as though the wage slaves are just so, or just above hamsters on wheels doing tricks.
Depressing, to say the least! :(