If im going to buy Vanity should i wait for the up date or buy it now?

I don’t think they have ever taken a Vanity out of the Shop, so it is up to you. the ones purchasable with Gold can be bought any time, and the ones purchasable with Cash can be bought when you feel you really want to have it.

when the update goes through, the Battle Arena Vanities might change to the next season, so getting up to Eternal League before that happens would be good if you don’t have the current seasons Vanities.