I think the chances of getting something like this in the short term are fairly slim as GCD just got a new API for Swift. That's not to say it wouldn't be nice though, async/await is something many people admire in C#.
Khoa Pham with a new SVG parsing and rendering library based on CALayers. It supports reading SVGs from a file of course, but you can also create individual elements and combine those as well. Because it's all just layers at the end, you can animate and do everything else that a layer can do as well.
You've probably written this code hundreds of times. You have a table view/collection view but you also need to cope with an empty state, a loading state, an error state and of course the state that shows loaded data. It's not hard code to write but it's time consuming. Alexander Schuch has a solution for you of course, it's not brand new but it's been recently upgraded to Swift 3.
Need more customisability than the standard view controller transitions, but don't want to dig in and write something custom? Jelly by Sebastian Boldt might be what you're looking for. It focuses on just two transition types, sliding or fading in, but then gives you a huge amount of customisability of how they work.