All riesling styles can age very well, so I've read.
I believe drier rieslings tend to take on more of the minerality and petrol notes as they age.
I miss not having 100 bottles of wine like I used to (and the disposable income to have them). There's nothing more than I would like right now than a decent glass of wine, as lately all I have been drinking is plonk. That Frederik Emile would be perfect. I have like 25 or so that are worth aging doing so doing, but far from me -- were they here they would tempt me too much. Humbug.