Very highly doubt they do a live album, the only reason to do it at this stage would be to pad their wallets but they don't really need it. The tour was short and unnotable. I'm not gonna pretend I know what he meant with the post, but if it was intended as some sort of foreshadowing of things to come then a live album wouldn't even make sense in that context, because that's not new and it isn't something they would be actively working on.