Sorry to say, but don't get your hopes up... It seems like Google doesn't care about ever updating the fonts they distribute.

The author of Crimson Text, a very popular free web font, complains about it on his Github readme [1]:

"While you are looking at the new, improved version, Google Fonts continues to offer the clumsy-looking original and has not heeded the repeated pleas for an upgrade."

[1] https://github.com/skosch/Crimson