I have been there for Fanime and the place is huge and has a hotel connected to the first and second floor on either end (and the Hilton has fridges in the room) it has an ideal outdoor hang out by the fountain and my friend loves the stairs.
The cons to the move would be it is not in the middle of so much activity so fursuiters like me whos highlight of the Fairmont was hanging outside entertaining mundanes may feel the new location is lacking in that respect. (though those who liked how private the Double Tree was will like this change) Also the food joints and ice rink will now be a 5-10 minute walk away VS right outside the door, and I will miss how "compact" the con is as everything will be spread out more at the convention center, at the Fairmont you can easily just sit out of the way some place to rest and still enjoy the con because so much happens around you.
I also hope the date would not change due to a move to the convention center, I am lucky to have a large local con the weekend before FC and if FC got moved up I would be torn on which to attend...(I also hope this other con does not move instead...a con overlap is a worry of mine every year)
Even if this is just a rumor and the con is not moving this year I imagine it will end up at the convention center some day.