Is it known if classic will have the same new, not like in vanilla, follow/pvp rule ?

I'd love to do BGs and WPVP again and that is a motivation for 5 boxing / keeping 5 subs but I'm worried that they will bend the experience and it won't be the same rules ? Is there an answer on that and will that influence your choices ?
(I guess if we can't pvp I may pick a pve server instead)