We are currently investigating issues some players are having on the megaservers. We will update as new information becomes available.
We are currently investigating issues some players are having with the ESO Store and Account System. We will update as new information becomes available.
If you're on console I doubt it as it seems the additional slots are part of the base game patch deployment.
@Turelus - EU PC Megaserver "Don't count on others for help. In the end each of us is in this alone. The survivors are those who know how to look out for themselves."