I know it would exciting to see other parts of the world, but I think the language barrier would bother me too much. Plus, I've never been to DL so I would like to see that first.
You will not have a language barrier to get around. All have maps and menu's etc in their local language and English.
In Asia you might have some issues with shows, although in Hong Kong at least one of the shows had English subtitles displayed on a screen to the side.
In France the shows are about 50/50 English and French. Mickey says something in French, Minnie answers in English. The dialogue is built with a lot of repetition so you can understand what is going on.
And even without understanding a language, shows are often very visual so you might understand a lot more than you realize. Like going to a ballet, or watching a mime.
We had no issues in Asia to talk to CMs about ordering food, or basic questions as where is the restroom? If you want an indepth conversation that might be trickier, same with filing a complaint. But if really needed there are CMs who speak it fluently and can be called for assistance.
In Tokyo I had an issue and the CM didn't understand me. She spoke enough English for basic stuff, but not to understand what had happened, and why I was annoyed. She called her manager to come and translate. At that moment I had enough, it wasn't worth the energy on my last days there, so I told her that it wasnt necessary and went on with my day.