Returning after over 3 years.

[Risvertasashi]

So it's been about 3 1/2 years since I last played. I have been reading all of the recent changes and they tempted me back. Is there any new ways of leveling, or should I just start levees from 60 and collectibles as before?

Ishgard Restoration. Not only is it good exp, you can also earn access to some mounts, glamor gear, emotes, etc with the tokens you get for turning in. Like Nioh said, it's similar to collectibles.