Well, yes. Samsung will use world-wide Apples tactic and own program now avaible in Korea and US.
This program is yearly phone exchange – now Samsung will extend it for additional regions and will sell “refreshed” phones for part of there normal price (new casing, screen and reset to fabric settings).
How much cheaper will it be? Hard to say but Apple models loose in year after premiere around 31% but Samsungs 49% so cuts should be big to be even close to second hand market.

Sources: Telepolis (polish) via Reuters