We are currently planning to end Arena Season 7 as early as January 19. At that point we will go through our normal process to determine who is eligible for the end-of-season rewards. This process should take approximately one week. It's very important for players who feel that they may be eligible for the arena-specific titles and/or Relentless Gladiator’s Frostwyrm to refrain from transferring their character to another realm until after Arena Season 7 ends.
The following Arena Season will not begin for at least one week after the current season ends. During this time between seasons, all rated matches will be turned off and only skirmishes will be available. When Arena Season 8 begins, all team ratings, personal rating, and arena points will be wiped, but matchmaking rating and honor points will remain.
Fuente : MMO