Football's rule-makers are preparing to trial video replays for the first time.
FIFA says the International Football Association Board will also discuss in January the merits of sin-bins, allowing temporary substitutions for injuries that require "momentary treatment," and a fourth substitute in extra time.
The discussions could lead to rule changes at the main annual IFAB meeting in March.
This year, IFAB ruled out allowing referees to test video replays.
But FIFA now says "IFAB has been working on potential scenarios and clear protocols for how it could be tested, with the idea that well-run experiments would be the best way to understand the pros and cons of video assistance."
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The only technology currently allowed is a system determining whether the ball has crossed the line.
