They aren't doing ANY free upgrades to V2 REGARDLESS of when you bought your V1s. I emailed them and they said its a €60 fee as per previous posts. Only those with warranty claims or the 2 month limit can do this. Outside of the 2 conditions, you cannot upgrade to V2 for the €60 fee (which covers reshell and cable).
I think once the first users start receiving their V2s, the important bits to focus on will be the fit and the comfort of the new enclosure as the electronics stay the same.