So then you could take say a population of dogs - say full-bred rat terriers - and turn them back into wolves. Given enough time of course.
In fact, the rat terriers are the ones held under pressure to remain that far away phenotypically from the coyote, or wolf, based on amount of food available and competition for same.
Any dog breed, however deviated (via inbreeding or selective breeding) to get the desired phenotype, will in fact over genetrations revert back to the coyote wolf phenotype. The time factor depending on the degree of deviation originally as the starting point.
If you are looking for a simple yes or no answer you don't understand the concept. Time is only a secondary variable. You probably meant "given a sufficient number of iterations".
The Shannon entropy is a measure of the average information content one is missing when one does not know the value of the random variable or variable set. The answer to your question then becomes both not probable and not impossible.