Well, apparently Rand Paul has something in the works that he will be releasing within the next couple weeks.So? My point still stands they've had years to come up with a replacement plan that would overcome any potenetial issues such as disrupting cov erage.
http://insider.foxnews.com/2017/02/17/rand-paul-obamacare-replacement-plan-march-april-trump-obama
Who knows what will happen though because there are a lot of decision makers in the process. Congress and Trump will have to agree on the final product.