I cannot see any reason why the thawed fruit could not be used to make wine. The resultant texture of the fruit is irrelevant, and I gather the taste and sugar levels are the same. The decision as whether to make jam, wine or both must therefore be a personal one? I presume pectin is not a problem with these fruit? If it was, conventional treatments exist.
I will confess to being envious (rare for me - envy, not confessions :D), as I don't have access to copious amounts of fruit.