Obamacare is hear to stay! The only thing to do now is to expand it!
Good luck with not having Republican state administrations/Congress not slowly grind it down, or at least degenerate very large parts into lawsuits that may well not be settled in the law's favor. Also keep in mind that folks who want to repeal the law outright continue to form an outright majority in the United States, and keep in mind that while Republicans just accepted the Great Society, repealing parts of the New Deal was still a mainstream position that could've won well into the early 1950s -- or fifteen years later. It's perfectly plausible that, in the aftermath of the wave of 2028, Obamacare finally gets repealed. Or sooner. Or it could stay; 2012 was basically it's biggest threat and clearly it's passed that hurdle.
But it ain't getting expanded.