Should I take the time to learn Swift?

Although the answer to this question is entirely subjective, I would go ahead and say yes, I think you should learn swift. Yes there are going to be plenty of changes but Xcode alerts you to the changes coming as you're writing code, so that you won't have to change much. Secondly, if you take your time and really focus on the material in the beginning of the Swift track at treehouse, a lot of the basic syntax of swift won't change. In my opinion you'll just be that much better when the Swift 3 courses become available, instead of waiting around. Lastly, I believe if you want to design your own apps, Swift is a much better language to learn. Objective-C, from what I've heard, is mainly if you want to work for a company and help maintain software. So you can look at it like this: Swift -> new apps, anything you'll be attempting to design yourself Objective-C -> maintenance of existing apps.