As for "New Calvinism"...

Calvinism doesn't have to be new. Nothing real needs to be new. You need real armor. Real armor doesn't change. The spiritual battlefield doesn't change. Doctrine is armor of God. 

Calvinism back in the 16th century wasn't new. It was apostolic. It went back to the fount. 

You start reading a New Calvinist like Kuyper, for instance, and you say, "OK...uhm, hold on here..." They start sounding a little weak. A little shallow. I.e. not old path. Not sound armor. 

You want sound armor. The spiritual battlefield doesn't change. Human nature (biblical anthropology) doesn't change. Historical events and patterns don't change. 

The thing about looking to the past is you can discern what is true and real and good. Think of music. If you lived during the '50s and '60s and '70s, in real time, you would have been marinated in bad music. Most of what was on the radio was bad music. Often really bad music. Yet when you look back from a future vantage point you can see in all that muck the really good music. You can't do that in the present and the future. You're stuck in the noise and missing the signal. 

I'm into classical music myself, but you should know what I mean. Satan wants you continually in the future. He knows you can discern truth and what's real looking to the past. The old paths. 

So when you say, "We must fit Calvinism to be relevant to the present and the future..." you don't even know what the present let alone the future is or, quote, needs. (It needs the same things it needed 500 years ago, by the way.)

It's Marxist to stick a "new" or "neo" on something. "We need a revolution!" Yeah, everything needs to be Year Zero. 

You need real armor. Real armor doesn't change. The spiritual battlefield doesn't change.