I saw an article starts with: "A company to launch a new product", in a news paper. I just wonder what does it mean? Is it a kind of usage of near future? (e.g. is to do something)
As @StoneyB indicated, it's headlinese. Here's a general reference: https://www.google.com/search?q=define+headlinese
You can transform it into standard English one of two ways, "is to" or "is going to". The former is more formal or used in specialized situations.
- Apple to launch new iPhone in 2014(Headlinese)
- Apple is to launch a new iPhone in 2014. (Formal or stylized. Announcement.)
- Apple is going to launch a new iPhone in 2014. (Standard English.)
One would choose between #2 or #3 for stylistic reasons. Of course, some style guides would mandate #2. Also, in a tight business presentation, one may prefer to use the shorter form (#2). On the other hand, if one didn't want to sound so strict and official, they could use #3 even in an otherwise formal setting.
Related Info: To round-out this answer with some closely related grammatical structures, consider the following sentences:
- Mary is going to the store. (A simple declarative statement.)
- Mary is to the store.* (Doesn't work.)
- Mary is to go to the store. (A declaration of a command.)
- Mary is to leave the store. (A declaration of a command.)
- Mary is going to leave the store. (A declaration of something as a fact, especially if spoken to someone and Mary isn't listening.)
- Mary is going to leave the store, now. (If said sternly in front of others, including Mary, this is rhetorically letting both others and Mary of the speaker's desire.)