Do a double disc like Journey did that one time; one with 10-12 new songs and another with 10-12 updated versions of their older songs. You could do;

Chain
Little Lies
Dreams
Second Hand News
Black Magic Woman
Say You Love Me
Hypnotized
Oh Well
Don't Dream It's Over
You Make Loving Fun
Go Your Own Way
Landslide

It would be nice if they could put a little EP together during the mid-tour hiatus, but I believe Neil has a short European tour scheduled during the break and with the holidays and such, I don't suppose they would have time.

I don't see why they cant put something together sans Neil and then get him to add bits afterwards. Christine surely has songs ready to be worked on and maybe Mike could bring something out of Stevie. Its a lost opportunity if they don't use such an opportunity to record something now they've gotten their chops. It would be Stevie's opportunity to show Lindsey you don't need to spend forever in a studio tinkering to make some music.