There had been some mention about why we haven't seen Carlos Quenedit much this season. He posted this on his public Facebook page back in February:
Updating: I hear that people are worried about when I'm coming back to dance, so here is the answer
Answer: As you all know I injured myself during nutcracker. I've torn almost 50 percent of the deltoid ligament in my left ankle during the show. It's been already two months and is getting better but unfortunately is not ready yet. The doctors say that, this will probably take another month. I really appreciate that many of you are so worried about me. it's good to know that I'm very present in your lifes. And for those who are wondering when I'm coming back (I don't know yet), And for those who are asking why I'm not back yet, I will personally let you know when I'm ready, don't worry. So, the purpose of this post is let you guys know the reason why I'm not back yet, and that is (because I'm not ready)
Lee Alex Meyer Lorey has referred to retirement on her public Instagram, including here and here.