Currently, the 280-character tweet facility is available to a small group of its 328 million users but it would soon be rolled out globally, Twitter said in a blog post late on Tuesday.
It is not yet clear if Trump - known for his fiery tweets especially when it comes to North Korea - is among the test group of users.
This is because in languages like Japanese, Korean, and Chinese you can convey about double the amount of information in one character as you can in many other languages, like English, Spanish, Portuguese, or French.
“We want every person around the world to easily express themselves on Twitter, so we’re doing something new: we’re going to try out a longer limit, 280 characters, in languages impacted by cramming (which is all except Japanese, Chinese, and Korean),” Rosen posted.
The average length of a tweet in Japanese is 15 characters, and only 0.4 per cent of tweets hit the 140-character limit.
But in English, a much higher percentage of Tweets have 140 characters (9 per cent).
Most Japanese Tweets are 15 characters while most English Tweets are 34.
According to Twitter CEO Jack Dorsey, this is a small change, but a big move for them.