But why is the Helsinki University of Technology not included? I have always thought that the Auditorium building is one of Aalto's most iconic works.
I also wondered that: why University of Jyväskylä but not Helsinki University of Technology which is generally better known work of Aalto. My guess is because the Aalto campus in Jyväskylä is very much in its original state, whereas the campus of Helsinki University of Technology (now Aalto University) has been altered quite a lot from the original plans.
I think this will follow when the proposal is prepared for nomination. And maybe also a German site will be included. There are six Aalto buildings in Germany.
There was a hint of this in the TWHS description text:
"Alvar Aalto's works are also situated in other countries. Some of them, such as the Vyborg Library
(1927–1935), the Baker House
(1946–1949) and the Wolfsburg Cultural Centre
(1958–1962), could present the aforementioned characteristics, supplementing the components of the series."
Actually those are just the buildings from other countries that I miss the most.