I wouldn't have any issue with the idea that it's Flying if so many people weren't stupidly, stupidly basing that supposition on the idea that its name is based on "Sylph" rather than "Sylvan". I mean, to be fair, I wouldn't actually have any issue if it ended up Flying, and I think the reasoning that somebody gave that it sort of looks like a kite with the bows and the ribbons if kind of cute, but all of the supposed "evidence" behind it, particularly from its name, is just total bull. --- My NIDOKING brings all the boys to the yard: http://goo.gl/ExAoe
I think it looks like it could be Normal/Ghost. It would certainly give new meaning to how Ghost Pokemon can look, making Sylveon a sort of holy creature without introducing a new type and having her only weak to Dark.
My guess- I guess Sylveon comes from "silva", a word relating to forests. Xerneas is not obviously from any known type. It was seen standing in a forest. We already have grass types. What are forests known for? Life. I guess there will be a new Life-type, based purely on these facts. --- White FC: 1034 0534 2444