There will have to be a lot more than 6. You have 6 classes balancing, debugging, additional races, multi classing, mercs, levels above 4 chapters 2-3 to be added there is alot more to be done. Adding additional classes to balance there early levels will help both development and balance patchs is why some commentary would be valuable. All the updates so far have been just bugs and cinimatics so little small updates like we added paladin we fixed 5 bugs wit the ranger we fixed some cinimatics. We dont expect to see this added till around december or january and are also currently working on incorperating druid as well but no eta currently but for the following patch - is an example of them giving a little bit of info without a full disclosure gives community some things to talk about.