Thank you for the suggestion, but I don't plan to add this feature. In my opinion, "recently wished" doesn't make as much sense as "recently owned" or "recently watched". Indeed, the fact that you've recently wished a movie doesn't mean that you wish it more or less.
It will be very helpful when you have too many wished movies.
The feature that I do plan to add in the future is the option to wish with a "plus" or to wish with a "minus" (like with the ratings). This way, you'll be able to list first the movies that you wish the most, down to the movies that you wish the less.