With all the recent news of lawsuits and potential repeal of the Affordable Care Act, will subsidies end in 2019 or 2020?
ObamaCare subsidies are part of the current law and will not end unless the Affordable Care Act (ObamaCare) is repealed. That means you can still get subsidies in 2020 and beyond.
With that said, there is currently a court case which has ruled the ACA unconstitutional and there are efforts to repeal the ACA. If the court case isn't successfully challenged, or if a repeal effort is successful, then things could change.
However, for now, despite what you hear on the news, Americans can still get cost assistance based on income under the Affordable Care Act and the Affordable Care Act is still "the law of the land."