I know what you mean Yuna, it would be very convenient if they condensed the books into 2 movies, especially when you think about the fact the books take place over a month but filming and production can take months and years!
I don't think we need to worry about that though. Hopefully the first film will come out before the last book, or even the penultimate book and scupper any thoughts of that.
The actors is a big consideration though, no-one has really come up with a way around it yet...
And greetings to Germany!