I haven't made the pound cake but they usually freeze
VERY well. I would not put the syrup or the glaze on until ready to serve. For the syrup, let the cake thaw completely and poke the cake with thin thin skewers and pour it over.
It "might" be OK to do it before freezing also, but not the glaze for sure.
It looks like a TERRIFIC recipe. I don't think you can go wrong. Just don't over cook--the only thing about a pound cake that is "bad".