[TheForsaken]

Originally Posted by Shiro Kaisen

Spoiler:

Because the Third Area takes place in the past, before SPHIA, so our Satoru would be able to meet the Past Enomoto.

Spoiler for :

No, it doesn't work that way.
Using Satoru's representation, we have A - B - C - ... - X - Y - Z becomes A - X - B - Y - C - Z - ... which means we can't return to A when we're already at Z, just like Satoru of Day 7 can't swap with Kokoro of Day 1.