Not responding to any particular comment:
If Vlad wants to return, the threat of Godslayer alone will probably be
sufficient to stop most assassins.
If Sethra Lavode, the Empress, Morrolan and Aliera announce they will
avenge Vlads assasination by wiping the Council and their successors to
the third iteration, The Organization will likely swallow hard and agree
to leave him alone.
If Brust wants to bring Vlad back to town, there are no more ifs: he can
do it.
--
"History will be kind to me. I intend to write it."
-- Winston Churchill