Shared captions/text styles and captions presets that can link to text styles.
Captions presets and text styles are created and saved on a project level, so have to be exported/re-imported into different projects.
It would be great if they were created as settings similar to export presets so they could be imported once and be available for all projects, or perhaps shared libraries as per MOGRTs.
It would also be great if custom caption presets linked to text styles too, as this is important where a standardised look/style is required (channels/networks).
I've also noted a bug when importing a custom captions preset it's name is not shown correctly, but is called 'subtitle default', which is a duplicate name of the existing 'subtitle default', so can cause confusion. (Premiere 15.4)