Hey, I'm here to give you some real information with sources cited; Lyte stated that they are big on reform, so if you got a ban much earlier in the season but have not gotten one recently than you may be eligible. The exact time lapsed for eligibility isn't known yet so keep an eye on Lyte's ask.fm;
http://ask.fm/RiotLyte/answer/132461289154
Both answers you say they'll receive escalated bans, which means no rewards. Is that because the time between now and the end of season isn't long enough to be "reformed", or are banned players not able to reform?
Yes, we don't believe the time between now and end of season is enough to reform. Looking at our data, we're thinking about 3 months minimum with no further game bans to be considered reformed and having a "clean" account status. We'll confirm the final numbers next week.
http://ask.fm/RiotLyte/answer/132435765186
Your recent answer to https://m.ask.fm/RiotLyte/answers/132433553858 I think he/she meant if players who were previously banned but not currently banned but are currently chat/ranked restricted. Do they get clean slate and also are they eligible for end of season rewards?
Players who received 7-day or 14-day game bans do not receive a clean slate in 5.18. The clean slate is just for players who have received Chat or Ranked Restrictions before. We are finalizing the Ranked Rewards policy for 2015 now that we've revealed the plan to reset Chat and Ranked Restrictions in 5.18, and as mentioned before, players with an active Chat or Ranked Restriction at the end of season will still lose their Ranked Rewards.
For game bans, we do want to give players a chance to still earn their Ranked Rewards. Looking at the data, we're considering a player as "reformed" if they've gone several months after a 7-day or 14-day game ban without another game ban (and of course, no active Chat or Ranked Restrictions at the end of the season). We're deciding the final numbers next week.