Question: What is the plural form of "status"?

Answer: 
There are some situations where *status* may be considered countable. In those cases, the plural form can be used as *statuses*. [MacMillan dictionary](http://www.macmillandictionary.com/dictionary/american/status) gives 4 definitions for *status*, and 3 of them are referred to as countable. Personally, I would use *status* as the plural form instead of *statuses*.
In Latin, the nominative plural of *[status](https://en.wiktionary.org/wiki/status#Latin)* as a 4th declension noun is *statūs*. This would be uncomfortable in English, and so the English plural is *statuses*.

The Latin adjective has a different masculine nominative plural of *statī*, but then means something more like the English *static*.