I am looking for a study that has examined whether and under which conditions (if any), an infinite and of possibly infinite horizon two person zero sum extensive form game with perfect information and finite discrete action space, has a value. I would appreciate very much any tips.
By the Ky Fan minimax theorem, if you can identify the strategy spaces of the two players with convex compact subsets of a locally convex topological vector space, and the payoff function $M(x, y)$ is convex and continuous in $y$ for any $x$, and also concave and continuous in $x$ for any $y$, then the minimax theorem holds.
I know of several variants of zero sum games with finite arenas and an with infinite time horizon, e.g. parity games, stochastic games. Infinite state variants of these have also been considered in several places, though I do not know of a good survey.
Examples of such games can be found in Krishnendu Chatterjee's works or in Nathalie Bertrand's works. A more classical work can be found here http://link.springer.com/chapter/10.1007%2F3-540-44685-0_36 This list is certainly not complete, but it might give you a starting point.