He, the Lord, Jesus, The Christ, did take human form and was born and He did die so He was mortal and when He rose from the dead He was no ghost but flesh and blood. The disciples who saw Him alive after the crucifixion and resurrection testified that He ate food in front of them to show He is no ghost and said "See no ghost has flesh and blood like you see I have". So what is He now He is with God. Still flesh and blood and no ghost surely. We do not know from scripture alone but the Holy Spitit can inspire our hesrts and spirits to know what He now is, now that He had back the glory with God The Father He had before the foundation of the world. This is foretaste of what the future people of the resurrection will be.
