The next new champion is Godzilla
http://nexus.leagueoflegends.com/wp-content/uploads/2017/06/LOL_CMS_98_Article_06.jpg
Clearly I'm joking about the Godzilla bit, but if this is an eye, it looks reptilian. Only a few animals out there, or types of animals, have round eyes with the elongated pupil. Animals like squid and octopuses i believe have rounded eyes, but not this type of pupil, plus we already have Velkoz so I don't see that happening. We already have a cat type champion in Rengar. We have the bug transformer in Khazix. Now it might not be a reptile type creature, but it seems to be the most obvious one to be next.
Look at the pupil, very similar to a reptile.
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTRtXFO9w08DZG3OVtIRRr7kw7iMrIoEvOl5-VN7fRSpny9ayjhFw https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQA6V5BeKeLbGIW-eE-A8CH-mwEHqrc74QXLqOB4D8BMD4Qb_qr
What we can also see is that it looks like either it has a lightning shape eye, similar to the lightning champion leaks that have been coming out since last October. Either that or the top bit of the pupil is a reflection, seemingly like a large void, so maybe a rip in the void to herald a void event and champion?? Also right in the center of the pupil You see what looks like a troll face. I don't know if that is on purpose or a sploch of art, but it seems important.
My guess is either a reptilian, a void creature, or a watcher since the mid pupil looks like trundle.
's cousin?
is your reptilian champion.