Increase the maximum level to 222. Grant +1 to each stat for levels beyond 200, and increase the stat maximum by 22 for ATP, DFP, MND, EVP. Grant +1 ATA at level 211 and 222 for a total of +2. Just require the same experience needed for level 199 to 200.
Have to do the increase of +22/+2 as to not mess up completed character material usuage.
Could even add in the droprate bonus, every 5 levels:
201 +.1%
206 +.2%
211 +.3%
216 +.4%
222 +.5%
How would the droprate change affect other players? Would it be only for the person getting the killshot or everyone in the party?
Either way players would have fun with their level 200-222 completed characters.