Speaking to reporters, Howe said: "I'd want Alex to be playing today, I'd want him training tomorrow. We would love the player to be with us - let me make that absolutely clear. There's no part of me that doesn't want that outcome. But I don't see that changing before Aston Villa, the current situation we're in."
The Newcastle boss revealed that he has held private discussions with the striker in an effort to find common ground.
"We've had discussions, and it's clear at the moment we can't have him involved with the group," said Howe. "I don't know how long that will be for. It's clear I can't involve him with the team at the moment. He is training later than the rest of the squad. There have been discussions since the tour. I don't think disciplinary action has happened."