The Cardiff Blues flanker led Wales with aplomb, in the absence of former Lion Matthew Rees, during the global gathering.
But with Rees, who has made eight appearances for the Lions, back firing after recovering from a neck injury, Warburton has been left in the dark.
Warburton would relish the opportunity to carry on as Wales captain but would understand if Rees was reinstated.
"I've had no indication what's going to happen, but Matthew was captain for the last Six Nations campaign," said Warburton.
"He did a brilliant job and it was only bad luck why he didn't end up being captain in the World Cup. So if I did it as a temp thing then I completely understand that."
Wales reached the World Cup semi-finals, their best finish in 24-years, with Warburton at the helm.
But the Dragons tournament came crashing down when the flanker was sent off just 18-minutes into the 9-8 defeat to France.
The relative success in New Zealand reignited the passion for rugby in Wales and Warburton is well-aware of the weight of expectation going into the tournament.
"We know there's going to be a lot of pressure and expectation in the Six Nations," added the 23-year-old potential Lion.