Display/Output Resolutions & Custom Tabs
With OBS Studio and SLOBS, there's the feature to set the base resolution, and the resolution that can be output to the stream, e.g. having a 1920x1080 base and streaming at 1280x720. I haven't seen this feature in Twitch Studio as of yet, so perhaps this could be added in the future if it isn't already included?
It would also be pretty nice to see some more customization features available to the platform, such as adding custom tabs around the player if wanted. I could see this being useful if someone wanted to have the buttons from the new creator dashboard on Twitch Studio, rather than having the dashboard open as well since they might want to monitor and make sure everything runs smoothly.