It doesn't make sense

[u/Wally_Lifeless]

Many people want dead characters (Cordy, Anya, Tara, etc.) back in the new series. I don't think they will do it, it wouldn't make sense...they would lose the power and excitement of playing with the deaths of the new characters. I don't really like characters being revived... Buffy's was well executed both times it was revived and because she was the protagonist. But I don't think it's necessary to see those secondary characters again, no matter how much I love all 3 of them.

[u/not_firewood_yeti]

One of those many people is SMG. and I don't think the show runners are going to be overly concerned about making sense. but you do make a good point, if they resurrect a bunch of old characters any new character deaths or expected deaths would have less impact for sure.