Forum:A question about the episodes with human finn

http://images4.wikia.nocookie.net/__cb20091227230730/adventuretimewithfinnandjake/images/archive/b/bc/20100401212842!Wiki.png

When Jake wishes to change the Lich's wish and they go back in time to see the Lich wish for them home, did the lich get another wish? and since he never made his wish to destroy life finn never wished for a world without the lich, does that mean Finn can make another wish? and lastly if jake and prismo remembered everything that happened before the Lich's wish was change does he not get another wish, despite going back in time and technically never making a wish in that timeline?