The title more or less says it all. In particular, I'm considering the title of a presentation or short article. I'll say that it's a discussion of new discoveries that might come from pursuing a "Project X". The title is currently (not by my doing) "Prospects of Project X", but my gut feeling is that it should rather be "Prospects for Project X". Glancing at a few examples it looks like there isn't a clear distinction, although a Google Fight gave "Prospects for" as the winner.
So, which should it be? "Prospects of Project X" or "Prospects for Project X"?
Best Answer
For the record, I'd sharply dispute that your question title “more or less says it all.” The better preposition would depend on the nature of the project, and the nature of the prospects as well (which may explain why the Google Fight you linked to was such a close match). It's context dependent; you haven't furnished enough information by asking us to choose between the very vague "Prospects of Project X," or "Prospects for Project X."
What might be the ultimate result of these new discoveries? Will they:
I might decide to use a different preposition, depending on what prospects are being presented, and how those might be discussed.
Macmillan and Collins both list several definitions for prospect, each with a slightly different nuance of meaning:
Interestingly enough, the last one I listed comes with two usage examples in Macmillan, one using each of the two prepositions you inquired about:
So, to show how this can be context-dependent:
On the other hand: