Few days ago John Blackbourn released a new project that basically is a list of hooks in JSON files from WordPress.
So I integrated them with a new plugin for VIm did in an afternoon in Python.
This plugin automatically reconize if the line is of an action or a filter so will show the right list.
Include also a new parameter to specify a custom path for the json files so you can use what do you want.
The plugin on install automatically download the files and keep them updated.
Github repo at https://github.com/Mte90/deoplete-wp-hooks.