What I find interesting is that with Void Eruption having/needing a cast time in order to get into Voidform, for some reason Blizzard is relegating Shadows DPS cooldown to require a cast time… unless I am missing something, no other class/spec requires a cast time for a DPS cooldown.
So now that Void Eruption (Voidform) duration is extended based on the insanity you spend, I think if we instead replace Void Bolt with Void Eruption so you can both use Void Eruption more often and at the same time extend Voidform… That would feel a lot better. This in turn would allow going into Voidform be its own ability and since it wont do damage, Voidform and Dark Ascension cast time can be removed and not require a PvP talent to make it instant cast.
I mean honestly… Why is Void Bolt even a thing? Its just another button you have to spam that doesn’t really do anything anymore right? Wont it feel better to instead save button mashing and use Void Eruption? That seems more rewarding. This will also free up GCD’s for procs of Mind Blast reset/instant cast and Mind Spikes and give you a real choice between Single Target (Devouring Plague) and Multi Target (Void Eruption).
Void Bolt is and has always been lame imo. Since it really doesn’t serve much of a purpose… make it Void Eruption instead.