We'll be seeing a lot of new characters being created with Necrom's release, for obvious reasons. Hopefully this will also include new players to ESO. For that reason, I'd like to reiterate a few concerns that players have had about the tutorial and the story flow.
At the end of the tutorial, we're given the portals. The three basegame zone ones lead to Bleakrock Isle, Stros M'Kai, or Khenarthi's Roost and start the alliance questlines. However, that does introduce a minor story break as all of those lines assume the player has already done the Coldharbour intro (and at some points like Betnikh, the story actually references directly the fact that the player has no soul). After the starter zone(s), new players will then travel to Davon's Watch/Daggerfall/Vulkhel Guard, where they'll finally meet the Hooded Figure and get the Coldharbour intro.
And then they're unceremoniously dumped right back into the starter zones that they finished. There is nothing pointing them to where then need to go unless they look in their quest log and see the unfinished zone quest in the Tier 1 zone that they left behind. This is pretty bad for Pact players, who will find themselves in an empty building since Bleakrock is being attacked; and very bad for Covenant players who already did the Daggerfall objective, because there's no breadcrumb quest from Daggerfall to Deleyn's Mill so they will literally have an empty quest log.
The best option would be to include one more portal that takes players directly to Coldharbour. Norianwe could say something like "Would you like to see how it all began?" as her line, and it can lead directly into the cinematic where the player is killed and wakes up in the Wailing Prison.
As a sidenote, it would be great if the Morrowind/Summerset/Elsweyr/Skyrim portals could give players the option of replaying the deprecated tutorials without rewards. It's sad that we no longer have a way to visit places like Deepwood Vale or the village on Firemoth Island, and there were some key story elements included (especially in Greymoor's)