The Standard format isn't even 100% implemented - there are still parts of the tutorial that mention Type 1 and Type 2 mode, even though they've been changed for ages. Balancing Standard would be highly difficult, though, considering normal release format; due to how new clans get high amounts of releases and other clans may be sporadic, one Standard cycle could invalidate more cards than were brought in since the last one, and that doesn't even account for quality of cards lost.
Still, Standard is definitely preferable to full-out Extended for players who've yet to make a big collection of strong cards. It's a good way to bring older players out of the comfort of overpowered old cards and get them used to the developing metagame at the same relative speed as new players.
Berzerk will take a big hit next time, comparable to what happened to Skeelz before.
The Urban Rivals team is made by lovers of all kind of Collectibles Cards Games and Trading Cards Games like: Magic the Gathering, Dominion, Vampire, Yu-Gi-Oh!, Pokemon, Wakfu TCG, Assassin Creed Recollection, Shadow Era, Kard Kombat and Might & Magic Duel of Champions.