http://jalopnik.com/nissan-confirms-...o-p-1501793053

Nissan executive vice president Andy Palmer told media there was no confirmation of which of the two concept models would hit production.

"Don't say that we won't do both, but we will definitely do one of them," he said.

He went on to hint that the IDx might have a manual transmission, or at the very least, paddle shifters.
Here is the Nismo version at the Detroit Auto Show, as a reminder.