definitions of extensive and strategic (normal) games are very different. Here is the question, what would you call a game which is extensive but in each step strategic.
For instance at each step both players choose to play or not simultaneously and each step is also affected by previous steps.
If someone has seen such a thing in any paper or textbook, please refer to it.
Osborne and Rubinstein have an advanced textbook that deals with these issues, such as repeated games and representing simultaneous moves in extensive form. http://books.osborne.economics.utoronto.ca/ I also like Jim Friedman's books, and he was an early master of repeated games. http://www.amazon.com/Theory-Applications-Economics-James-Friedman/dp/0195036603