Eventually, EtoEto is supposed to replace TextFugu, but TextFugu will be here to stay for at least one year. I heard that right now, EtoEto only has an advanced content section called Kuma. (Fugu and Kappa are supposed to come later.) When it’s in alpha and released to all TextFugu Forever members, EtoEto probably will be a supplement. Later, however, EtoEto will be a replacement for TextFugu, when TextFugu is gone.