I feel fine personally. Because Red Velvet was doing always 3 CB's a year, it was good for Red Velvet to rest all this time. Blackpink hardly performs 5 songs a year, because of YG lazy. So, despite everything, I am glad for the music they have given so far.
They already have a comeback planned. Keep in mind that Wendy's still recovering from brutal injuries, so they're probably trying to figure things out. You might think she has fully recovered, but there's no way that's possible given the circumstances. What happened to her was serious. It's possible she won't ever be the same again after this. Look at what happened to Heechul; his accident happened a long time ago, but he's still limited in SuJu participation to this day.
I'm guessing the biggest challenge for them right now is Wendy's recovery. Once SM figures that out, Red Velvet will be fine.
Haven't you seen the SM concert, I think Wendy has completely recovered, she performed beautifully PAB, Bad Boy and Psycho. I think you are pessimistic. Wendy wouldn't have danced that much in the concert if she hadn't recovered completely. People forget about the preparation process for the album. It takes a certain amount of time to record an album.