I feel terrible for laughing out loud just now... "Don't cosplay from a series that's ended!"?! That's... Pretty absurd. Internet trolls can do better than that. :P As may as well also say, "Don't watch any movie ever again that you have seen once, because it's over now." Or, "Don't read that book again because you've reached 'The End'". xP You rewatch movies and reread books and replay video games because you enjoyed them, likewise with cosplay.
Due to health, I cannot work on cosplays like I was able to in the past. :'( Or attend cons with ease. Few cosplays that I am working on (when body allows) are:
Vampire Hunter D - D (Amano ver.) 5%
Legend of Zelda Twilight Princess - Zelda 15%