I was in the WMD so I saw all the troubles and problems that the devs can encounter during the development, I don't mind of the delay really. But it's been 12 years now from the release of the first GTR2 and some year from the announcement of the sequel. It's time to show something in movement and give some definitive infos about the content of the sequel.
Absolutley no need to show something.
You didn't even bought the Game yet and you allready think they owe you something. People nowdays. (A lot, lot ,lot, lot of sarcasm)