From a development standpoint I think the only reason for the Europe trip is to try and differentiate the game from BaDIK. As I said in a post several pages back, it makes little narrative sense.
I initially thought when the Europe trip started happening seemingly out of nowhere in the middle of the semester (rather than at the end of one), that it was because the developers bought a bunch of European landmark assets that they wanted to use. But nope. From playing the previous update, there doesn't seem to be any assets that justify having it be a trip to Europe in the first place. No Big Ben, or Eifel Tower, or Reichstag, etc.
It's just... nondescript streets, seemingly condemned buildings, and other totally generic backdrops that don't convey anything about where this story is supposed to be taking place.
It reminds me of some low-budget movies where they never could show you a flying saucer actually *flying*, so they just had the actors point offscreen and tell people that that was totally happening.
Maybe they got added in the new update, but I doubt it.
It's not as if these backgrounds are necessarily bad, but it just seems weird that you'd have your game suddenly jump to an exotic locale and then stubbornly insist on not showing anything that would motivate people to go there in the first place.