I think in an ideal world, you want him to remain as the creative fullback that he is, and just do what he's currently doing. People are only talking about Trent in midfield because we know he can do it, and we are struggling in midfield with Thiago out, and Keita made of biscuits. Trent's stature is also quite big, shoulders have broadened and looks stronger than he ever has been.
So yeah, I'm down for Trent to play midfield if we're short there in numbers. Just against Palace the other night, he was properly in a midfield position on the left hand side, and played a lovely ball for Salah to miss with his header.