I don't know how much more hair types will be added. But you can now add custom jiggle objects if you want to try drawing your own hair and importing it. And I do plan to add more eye types in the future but you can also attach custom lashes using the customization panel.
For game capture in OBS, it should work just fine. You may have to mess with the settings in OBS to get it to capture correctly, liek the color or transparency options in the game capture properties.