Why there is no new class?

Kadoin

They can't make a new class because there is nothing left to take from templar and give to another class.

Finedaible

They can't even release one class without spending 4+ years on it and several changes post-launch over the next year so... Not looking good really. I've lost hope for a new weapon type, and it seems spell-crafting is even further from being a possibility than ever before; Not that the current engine and server structure could even handle spell-crafting with the current performance debacle and the arbitrary balance decisions.