Any Future Plans for Multiline Java String

It was proposed for inclusion in Java 7 but was rejected.

It was proposed again for Java 8 but did not make it to the final version.

Java 9's JEP 213: Milling Project Coin does not include anything regarding multine strings either.

It seems very unlikely. They didn't make the cut for Java 7, as noted in the answer to Java 7 - Multiline strings

Update January 2018:

Have a look at JEP 326: Raw String Literals.

The planned syntax will be:

String haveUeverSeenLorem = `Lorem ipsum dolor sit amet, 
consectetur adipisicing elit, 
sed do eiusmod tempor incididunt 
ut labore et dolore magna aliqua.`;

Maybe it will be integrated in the next version of Java (Java 11 in September 2018 would be great).