Do you see Terence here? He's lonely. He needs some other purists to come over to consequences and be evil with him. Sure. Some of them are in jail and some of them are dead, but thankfully that's not a problem! Dead can come back to life and that pesky problem of Azkaban will be taken care of next month.
Just imagine the fun that will come with coming back to life or busting out of Azkaban? There is a lot of hatred towards ROs (Resurrected Ones) going on right now, a secret plot to kill them all of and three big game events coming up in the next month or so.
Bellatrix Lestrange would be lovely to see. As would Lucius Malfoy, The Lestrange Brothers, The Carrows and other DEs.