Both forward Adrian Kempe and defenseman Paul LaDue are eligible to play for AHL-Ontario the rest of the season and into the playoffs. Although there were no formal announcements made by the Kings, a team hockey operations source confirmed the transactions that allow them to be sent back to the Reign any time for the remainder of the season by the Kings should the team decide to do so.
— AHL Communications (@AHLPR) March 1, 2017
It should also be noted that NHL teams receive four non-emergency recalls following the trade deadline, as noted here by Sean Shapiro.
Kempe has appeared in seven total games since being recalled and making his NHL debut on Feb. 16 against Arizona. The 6-foot-2, 20-year-old has no goals and two assists and a minus-3 rating. LaDue, 24, has appeared in six games for the Kings with no goals, two assists and a plus-1 rating. When with Ontario both are considered key contributors.