Democrats can still filibuster a repeal as republicans won't hold a supermajority in Senate.

The rest of the republic party is going to be less eager to burn everything to the ground. There's a chance that they'll choose to just ignore obamacare as there's not much to be gained by attempting to repeal it.

The hard part will be "and here's our alternative!"

Because it's already in place, and some of those folks in the House and Senate might want to get elected again.