The Ground Beneath Her Feet isn't on most CDs of ATYCLB. It's a bonus track they stuck on at the end in select markets. It sure wasn't on the copy I bought at the time.
It was an old song already. They might as well have stuck Sunday Bloody Sunday on there.
We're talking about brand new songs which will, presumably, be on every actual CD or LP copy you can buy of the album. That's entirely different.
Thinking that Songs of Experience will be released in October is crazy talk. There's no advantage to U2 in releasing another album until half-way through the tour. They need the focus on these songs now, these singles and videos, and they need to play them live. In my opinion it makes way more sense to release a follow-up half-way through the tour to perk things up again and get attention when they need it to return.
If when we buy the physical album next month, you see tracks 12 and 13, you'll see that I am right. I could be wrong, but I'll be surprised.