Ubuntu Touch Q&A 50 is this Saturday 18th of May at 19:00 UTC. There's still plenty of time to post your questions. Use the forum link before the event then Youtube Livechat and Telegram during the show.
Live Show : https://www.youtube.com/watch?v=kxnqPkQrKJo
Forum Link (questions): https://forums.ubports.com/topic/2721/ubuntu-touch-q-a-50