Looking back over the three years there has been a decrease interest in pvp at least on the EU PC server. That is however not due to lack of player interest, but due to ZOS shortcomings. Lag and server chrashes is one problem although less than a year ago. The real problem from my point of view is the lack of balanced campaigns and the lack of decent rewards from a campaign. There is lots of proposals from player on how to improve the situation but ZOS is doing nothing! I am afraid that pvp will die soon If nothing happens. If that happen I will leave probably also if pvp goes non-CP.
I really don't understand why the consolidation was done. It certainly isn't to help lag because sometimes the lag is so unplayable I consider quitting for the day. The only thing I can think of for NA is that from the hours of 4AM to 830 AM EST Cyrodiil can sometimes be a ghost town... but its ridiculous to do that because the prime times are unbearable. ZOS needs to address this.
I'd love to see server population addressed on the CP campaign. How about zenimax make pvp items all limited to 'within cyrodil or battlegrounds' and make AP only spendable on pvp items instead of one decos and motifs. That would solve the overpopulation issues!