More importantly, you'll also be introduced to the new grind which is that for totems, the currency that unlocks this new campaign. You can only collect 100 per week to begin with but can boost that as you advance. How does one get to the 100 per week though? The Prince in the new hub gives you 6 patrol quest bonus rewards per week, which each give 5 totems, so that's 30 out of the way. His patrol quests (the ones that start from the city) are quite fun too. You might need to wait a few minutes if you finish them too quickly for his quest cycle to restart though.
There's another 20 from a weekly that comes from defeating a rare critter, which randomly spawns in the place of a regular mob. Hopping to a channel with less people gives you a better chance of finding one I feel since I encountered 2 at a very off-peak time. I'll keep an eye on that and update here if it continues to be the case.
The remainder of the totems will need to come from repeatable quests at Camp Vengeance, giving 5 totems each. There aren't that many variants, but if you are just gunning for totems, the path of least resistance (with or without a party) seems to be "Rescue Templars" and then "Rescue Scouts from Batiri". They're fast, and don't involve fighting your way into (and then out of) one of the many ruins or sanctify spots required from the other quests.
Does that sound boring and repetitive? Yes, but it's also efficient. There might be better options as more quests get unlocked, but for now that is my plan of attack.