R4 was a revolution in car scenery, for is wide range of use, space organization, nice shape and mechanical innovation.
All that this revivals have to offer is a spread of vintage fascinating and, under the bonnet, modern engines.
In my opinion they are for those who like the appeal of classic but are not able/ready/disposed to have to do with noisy, slow and care-needing old cars...
Surely I do agree that the thing I will look for searching for a r4 heir is her working/adventurous spirit, and I find some of that in Renault Kangoo, but without the originality and the breath of innovation brought from r4 in car's panorama.
And, last but not least, i think that modern cars tends to be the more equal one to another the more time passes, and this trend of repeating new version of old cars is a symptom of lack of imagination and of the needing for some spread of innovation...
Maybe the new r4 could have some sort of meaning as the first total electric car, or something similar...