So according to this website, the device tax will bring in $29 Billion over the next 10 years.
So are they going to pass another tax to offset that missing revenue? Probably not. Any calls for repealing any revenue generating aspect of the ACA must be offset with revenue from somewhere else. As crappy as the ACA may or may not be, it is one of the few programs passed by Congress that have built in funding mechanisms.
That is why the ACA will work to some degree. But its still benefiting a particular industry (insurance) by allowing them to take 10% off the top of all healthcare spending. They have to be eliminated at some point.