LBA 3 has been kicked around as an idea from way back and it resurfaces every now and then. I can’t recall how these were made public, but there was a working title for the project which went something along the lines of “The Stellar Entity Genesis” and even a story layout which included Twinsen and Zoe’s teenage son as one of the main characters.
I’m unsure when the interview above took place, but I’d imagine it’s been some years. I can’t see it happening any time soon. The current IP holders, 2.21, have stated that they are working on a remake/re-imagining of the original title, a move which I welcome to be honest.