Thomas is fresh back from a loan at Leeds United.
Keen told the WBA website: â€œHas he got a future at the club? Thatâ€™s something youâ€™d need to speak to him and Steve (Clarke) about.
â€œHeâ€™s a massive part of the squad between now and the end of the season and because of the injury situation he could have a really big part to play.
â€œHe could become a mainstay in the team.
â€œWeâ€™ll have to wait and see."