Before I even begin, I want to point out that I'm very happy about this Non - CP Campaigns change being added to the game.
Making the "Azura's Star" Campaign, which on both the NA and EU server is the most populated campaign, while also being the only populated campaign until the late hours of the day will improve PVP. Doing this will spread out players since some of them won't like the change, which will force them to switch campaigns, resulting in less lag, and more variety of campaigns to choose from, instead of having dead campaigns that are completely controlled by only one alliance.
My problem with this change, is that I'm afraid Zenimax won't change the battle spirit buff accordingly to the No Champion Point feature of those campaigns.
Since most people in PVP have alot of champion points, they currently get drastic bonuses to their stats, and when it comes to damage, it can be increased by up to 25%, whether it's 25% increased physical damage, or 25% increased magic damage, etc. Since the Imperial city patch, damage became a lot lower, since the Battle spirit buff had it's "Reduced Damage Taken" bumped up to 50% from 20%, which is a major difference.
Removing all the bonuses from the Champion points and leaving the 50% Less healing received, 50% less damage shields, and 50% "less damage received" the way they are now will be a mistake. Damage will be too low for the type of game-play ESO PVP has now.
I believe all of those numbers should be reduced. Just an example: In the Non - CP campaigns, the "battle spirit" buff will decrease all damage taken by 20%. healing and damage shields will be reduced by 20% too. I'm not saying these numbers are the best ones, But I believe a change has to be made before adding these campaigns into the game. Adding 1 more update to the PTS with the changes i just mentioned will be a good idea, letting people test it out, and see what's better.
In addition to what I mentioned. Lowering the "Less healing received", in the Non - CP campaigns will also help Percentage Based Healing be more effective, for example: Dragon's blood, a dragonknight healing ability which suffers the most from the battle spirit buff, has it's healing reduced by 50%, while the healing is based off of the missing Percentage of -> Missing<- health. That means the more maximum health you have, the bigger the heal, and since patch 1.6 having high health for damage dealers is usually not the best choice, and the heal is only truly suppose to work while the dragonknight is at low health.
Reducing the 50% less damage shields will also help the templar ability "Sun Shield" and it's morphs, since the shield, like dragon's blood, is based of a percentage of maximum health, and also highly suffers from the battle spirit buff.
Of-course bringing back "soft caps" and changing to battle spirit buff to what it was before the Imperial City Patch will be the best fix for those kind of abilities, and to PVP in general, although not everyone will share this specific opinion.
Please share your thoughts on this idea, let me know if you agree, and if you have ideas of your own, don't hesitate to share them with everyone.