Demers is unlikely to resume his playing career, Sheng Peng of San Jose Hockey Now reports.
Demers was reassigned to AHL Bakersfield on Sunday.
Demers has signed a one-year, two-way contract with Edmonton.
Edmonton released Demers from his professional tryout Monday.
Demers will join the Oilers for training camp on a professional tryout agreement, Daniel Nugent-Bowman of The Athletic reports Thursday.
Demers inked a one-year deal with AK Bars (KHL) on Monday.
Demers has been a healthy scratch in the last two games.
Demers posted an assist, three shots on goal and a plus-2 rating in Saturday's 5-4 overtime loss to the Blues.
Demers (undisclosed) is in the projected lineup for Thursday's Opening Night matchup with San Jose.