I've been doing some science on an alt. I only just now cleared Heavensward, so I'd like to say the new player experience needs to be improved substantially. I keep seeing a lot of people treading level 60-65 and rolling dozens of alts but never even reaching Stormblood, which does them a huge disservice in terms of gameplay.

For Shadowbringers, I actually hope they let any new character start at level 50-60 on a job of their choosing, with all relevant content unlocked, so they can actually enjoy the real game. Players that are interested in the storyline then have the option of going to New Game + or, if they want to put less effort in, inn room cutscenes.