I voted for 3, 4, 5, 6 and 7. Some of those would suit me personally. Others wouldn't matter to me but I think they'd be a smart move for other users.
I could have voted for 8, no arp section, but I think it's nice to have an arp feature regardless of whatever options are available for external control. I like to use an arpeggiator as an extra modulation source, of sorts, as well as for the more obvious use. I'd much rather have one than a sequencer, as well. (I've made much more use of the MiniMoogV and the CS80V's arpeggiators than of the MMV and 2600V's sequencers.) So much more interactive and interesting.
I think you're right to post this poll at such an early stage. Future planning starts now, especially as Arturia's competitors are probably looking at the MiniBrute and panicing a bit right now, but will start to think furiously about what they can come up with in future.