With the Premier money now I am sure they will get healthy contract offers, if they leave we now have money to replace like for like hopefully. If they want to play regular games and not sit on a plie of cash on some Big Money teams bench - stay and get a relegation clause written in.
Be a lot of money since he signed a contract to 2021
http://www.seagulls.co.uk/news/article/2016-17/anthony-knockaert-brighton-hove-albion-3606697.aspx
Not sure he wants to leave either