Personally, as I've often expressed here, I really the landscape type of backdrops that kind of blend in and/or expand and add depth to the stage set! Single covers and other Eddie stuff is alright when when i's done really well; TBOS backdrops were all brilliant, for example, and I think the icy versions of classic single covers on
Maiden England tour were nice touch!
Anyway, about the bolded ones, given their subject matter, I think that incorporating
a samurai (or snake symbols, for that matter) to the backdrops would be slightly "inappropriate."
If
The Writing on the Wall will get a backdrop of it's own, I think the tower from the video & poster would do fine. In my opinion, that single cover just wouldn't look
that great as a backdrop and if they're going to do something related to the video, there's plenty of other visual elements to dig into and rearrange them to a much more effective backdrop.
But yeah, we'll see! I don't think every new song will have a backdrop of it's own. There's probably 1-2 backgrounds that are featured on the Senjutsu portion of the LOTB set and next year.