Is there a plan to support -watch

[hrgdavor]

in some projects where Java is backend and JS is frontend, I use -watch for the JS code and HTML/SCSS->CSS. I am aware that for teams that do unit testing for each little piece, or use TDD, this is not a benefit. But developing quick prototypes using build as you save is a huge time/nerve saver (plus livereload). I have just noticed this build system, and are wondering about -watch type of support.