The Next Ultimate Skin

I know we just got one over the last few months and I know it does take awhile to make a regular skin, and there're epic skin and Legendary, which take more time and work to make them extra special. But my friends and I can't help but wonder what the next ultimate skin will be.

We can already make some educated guesses by the way Riot go about doing things.

1. It's most likely going to be a Top Laner. Just because all the other roles have been fulfilled. and Riot like to keep things "balance", so it would make sense to give a Top Laner an ultimate skin. So you can have a full team.

2. It's going to be an older champ. Now I'm just guessing, I have no idea. My only reasoning is what Riot they said about the Hextech Skins, that they gave skin to champs who already have a lot of skins so when you get it's worth something to you ( beside the cash you drop for it lol).

3. It come down to concept. At the end of the cycle, it's going to come down if the idea is grand enough to make into an ultimate skin. All the ultimate skins are very different and work in there own way that set them apart from any other skins even other ultimate skins. Yea there one common mechanics of transformation with each one but that about it (as far i can tell).

So, I was making this post to see if anybody had some ideas, theories or concepts about the next ultimate skin. Feel to tell I'm wrong and share your thoughts on who might get one and what there theme would be.