It may be best just to wait and see what shape the edge is in before you decide. If it needs work, then you can decide if you want to thin it or not. If it's pretty sharp, you might just want to use it for a while and see how you like it.
Keep in mind that thinning the edge can be done no matter what kind of edge you have - convex or V-shape. Also, an edge doesn't have to be thinned out to be sharp. What kind of edge you want, convex/V-grind; thick/thin will depend on your uses for the knife.