think they have commented on 2.0 coming with some spell and ability additions. I'm gonna go out on a limb and assume some of this additions will be made with both pvp and pve situations in mind, such as adding silences and dispels. As for 1v1 balance i believe they will try their best to make it as fair as possible, but if your getting ready to launch a pvp engine based around arena style content (i.e. 5v5 3v3 2v2) and instance/zoned pvp (capture flag, take towers etc) they are probably gonna be more focused on group balancing than individual balancing. So will just have to wait and give constructive feedback, then see how SE goes about class balancing after that.