Colour 5x7 is not actually dead, just hiding...

portra 160 is available (at a price)
http://www.bhphotovideo.com/c/produc...50_Sheets.html

Provia 100F
http://www.japanexposures.com/shop/p...products_id=46

Velvia 100
http://www.japanexposures.com/shop/p...products_id=45