Hintz, 21, ranks fourth on Texas with 15 goals and is tied for fifth on the team with 27 points (15-12=27) in 55 AHL games this season. Hintz also ranks third on the team with five power play goals and is tied for fourth with two game-winning goals in 2017-18.
The 6-foot-3, 205-pound native of Tampere, Finland was originally selected by Dallas in the second round (49th overall) of the 2015 NHL Draft.
McKenna, 34, has posted a 14-9-4 record with a .908 save percentage and a 2.64 goals against average with one shutout in 29 appearances with Texas during the 2017-18 season.
The 6-foot-2, 185-pound native of St. Louis, Mo. was signed by Dallas as a free agent on July 1, 2017. McKenna was originally selected by Nashville in the sixth round (172nd overall) of the 2002 NHL Draft.