Neal is right, all this is very suspicious. No Demo, no previews, "no comment" about DRM and protection until a few days ago, we can not resell the game...and so on.
It's bad.
I fear they (ubi) know they're throwing us garbage. That's why they don't give us a real preview. I guess they already KNOW a lot of us will be really disappointed in many ways.
But, of course, this would damage sales and revenue...so better let them (buyers) discover when it's too late.