As Laure notes, next year can be considered too far in the future for present tenses. I’m learning to swim a second time this year.

I prefer using will here, because the action is in the not-so-near future. Will conveys a powerful sense of certainty or determination when properly stressed: I

will learn how to swim next year. From experience, I will have an intense sense of uncertainty/continuity to learn that I have not done a great deal of work whatsoever.

Add a more accent to highlight the strength of the decision.

I’ve stuck with progressive tenses for the content of the questions. Is it possible to be procrastinating here? Suggesting that the learning will be a somewhat involved or longer process, and also leave open some possibility that it will not be completed by the end of the next year.

Buy is often used as an emphasiser to enhance or draw attention to the closeness or possessive aspect of relationship.

When will

• I be home tonight? What does it mean that it’s not everyone’s home? Is it possible that I’m away from home for a while, and not sure that I will be staying there?
• Vincent van Gogh cut off his own ear. How do you cut off your own ears? If of own’s writing you are talking about Van Gogh, well, it is more like his/her not.

In this specific instance, Detroit’s own calls attention to the fact that Eminem hails from Detroit. In Eminem’s latest film on screen, The Stone, he is performing ⁱⁿ New York City 1. As mentioned by Jim, this phrasing is often used when introducing a performer who is appearing in his hometown, but this need not be the case. When utilizing “own” you can add accent, for example to add a bit of verbal flair to one’s speech, such as a talk show host may be tend to do.