Most people here will watch the films in the order made but there will be some younger viewers or general newbies who will go chronologically.
Episode 1 is called Episode 1 not Episode -3 so in my book the PT should work both ways, as a film trilogy you watch after the originals to see some of the back story and as the first three episodes which do not spoil the next three.
My preferred option is for Obi-Wan to say “Your Mother wanted you to have this” which suggests that Owen knew Luke’s mother and then later change Vader’s line in ROTJ to “Your Mother once felt as you do”.
This would bring a very important female albeit by reference only to an OT that is sadly lacking in many.