Lock Alun-Wyn Jones is thought to be a major contender for the post vacated by an injured Ryan Jones in Saturday's title decider against Grand Slam-chasing England.
Sam Warburton, last season's Six Nations Grand Slam skipper, and prop Gethin Jenkins - if he is recalled after injury instead of Paul James - would also be in the frame.
Warburton, though, delivered a man-of-the-match display without added pressures of captaincy against Scotland last weekend and Howley might well decide to repeat that strategy.
Justin Tipuric is expected to replace Jones, who broke a bone in his shoulder at Murrayfield, although versatile back-five forward Andrew Coombs is another option.
The Wales back division, though, is set to be unchanged for a fifth successive game, with centres Jonathan Davies and Jamie Roberts making a 14th championship appearance together to break the Welsh record previously held by Ray Gravell and Steve Fenwick.
And Mike Phillips will become Wales' most capped scrum-half, featuring in his 77th Test match and overtaking Dwayne Peel.
"People said me and Jamie we were too similar and could not play together, but if we set that record on Saturday it will be testament to the hard work we have done and how we've developed together," Davies said.
"Things have taken a while, but we have come a long way. We are still developing as a partnership and hopefully getting better.
"I expect they (England) will go with (Brad) Barritt and (Manu) Tuilagi because that is what they have gone with in the last couple of games. They are a strong centre pairing. Jamie and myself need to get our heads down and look to stop whoever comes down our channel."