re: Fantasy Football - NFL league merger!
Keeper rule for now: No keeper prior to Round 6. The keeper counts as if you drafted it two rounds prior to when you actually did.
Ex: Titus "Make it a Win" O'Neil is drafted in Round 6. He'd count as your Round 4 draft pick the next year.
Also, dropped players become 16th rounders. The exception here is that any player originally drafted in round 5 or above are exempt from this. In other words, there is no way for a non keeper pick to become a keeper pick.