Trump is not repealing Obamacare.

[Aegon]

Trump said he would consider keeping parts of it.
Trump said he is willing to keep the provisions of the law that prevent insurers from denying coverage due to a preexisting condition and that allow children to stay on their parents' health plan until they turn 26 years old, according to the Journal.
"I told him I will look at his suggestions, and out of respect, I will do that," Trump told the Journal.
Health policy experts have told Business Insider over the last few days that Republicans do not have the filibuster-proof majority needed to repeal these parts of the law, anyway.

Honestly not sure what all this means.  Sounds like a lot of waffling.  Also sounds like a lot of adults may still end up uninsured?

To be sure, it does seem he won't be keeping his promise to full on repeal it as his first act, though.

Those are definitely the most popular aspects of the ACA. Even a lot of anti-ACA folks are in favor of those. So it'd make sense he'd want to keep them in his new version, or plan.