From my Twitter feed alone came these suggestions for the Oscar host to replace the now-exiting Eddie Murphy:
–Neil Patrick Harris
–Ron Swanson (aka Nick Offerman)
—Old Hoss Radbourn
–Troy and Abed from "Community" (Danny Pudi and Donald Glover)
–Amy Poehler and Tina Fey
–Roman Polanski and Mel Gibson
Based on the interest, I have suggested a 12-week reality show in which the finalists compete for the gig.