For me it's messy to have Android & iOS separate projects, because i need to upload it double time. It would be great to have possibility to merge projects (for example 1 screen have assets with android & iOS resolutions). Also it would be great to have states & variants of the one screen. For example. Now If I want to create different variants of screen I need to prepare separate screens with different tags. And developers have to navigate between them, and each screen have their own assets but most of it is doubled. If they could you one screen and only check different states of them (exp. button off/on) and variants (how it looks on ipad how it looks on iphoneX or old android device). The assets then wouldn't be doubled or tripled between screens.

For now tags work only as information that this screen is part of this system (exp. Home screen) But exp. Home screen can have promo view or something different. Then You need to upload additional screens with only 1 thing changed