Astia has been discontinued in 35mm before 120 was abandoned as well. Seeing Velvia RVP50 going out of business for LF makes me really nervous. I've shot Velvia RVP 100 several times and it is not a replacement. I just sold my stock of RVP 100 and replaced it with RVP 50.
There have been three films I was really fond of: Fuji Astia, Velvia50 and Kodak E100G. Now its only Velvia 50, and that starts to fade away.