I try to contain my blind hope that this will be played, in contrast with my loving embrace for the surprise debut of ES, it just doesn't seem likely to ever happen. We're loving the resurfacing of older lesser known songs on the last few tours, but we're not talking about stuff that was never played, or at the very least never a single. Plus Acrobat has been around more than twice as long as ES and never been played.
Acrobat is my single favorite song ever, not just U2 song, so it would blow my mind beyond belief if it was ever pulled out, but I just don't see it happening.
And no, I don't think the interference servers could handle the wave of smilies (or enthusiasm) that would flood here if that ever did occur.