#1 - Sept. 17, 2011, 9:19 p.m.
It appears that if you dismiss your templar you cant get it back. I wanted to try the heal on him so I dismissed mine right before I started the event.. The new Templar follows you however after you defeat Jondar and get ready to go down to the next floor he disappears. I have tried running the same quest again to get him back to no avail. Im going to try a fresh run thru to see if he appears.
EDIT: fresh run does not appear to fix the issue.