Way to go. And being able to exapand on an older play is often overlooked.
As Tennesse Williams once said to Gore Vidal, "It may be published, but ot doesn't mean it is finished."
I'v had success with that myself. Taking a ten minute play that has won awards and making it a 45 minute play sometime later. And in one case a one-act play into a two-act play that won five National awards in one year.
I encourage others to do the same. As Yogi Berra said, "It ain't over till it's over"