Possible Clues:

• "Hasta la vista"
• I do this by and by if I'm heathen
• Fragment of aretalogy recedes after a while
• "In a little while"
• Sooner's alternative
• Heat hen as I do this, but not now
• After a bit
• Procrastinator's mantra
• Part of Grace Paley's same day
• 'Peace out'