If that happens then sure it would grow in value. But if it's the eurozone they are after, then I am not sure the Netherlands and it's past currency is really popular or even known enough to garner much support. Wouldn't a digital Euro-coin crypto have wider appeal for that purpose?
Not only that, there is also a german e-Mark or something and probably a few more nostalgically named other coins based off of past currencies.

I think it's hard enough for the likes of Litecoin, Dash, Monero, etc. to get a real foothold, let alone a really tiny crypto like these..
I think in the long run, all crypto will go up so even Gulden will. But others will probably go up faster, and higher..