baby boys room ideas?

I recently lost my son back in May. I already have so much elephant stuff, bedding, stuffed animals, decorations, etc. Now I found out I'm having another boy and currently 12 weeks. My mom is holding onto most of the baby stuff and wondering if I still want to do elephant theme. My heart is torn because I feel like elephants was my son Daxton's thing, but I already have so much elephant stuff.

Should I use the same stuff I have or would you change the theme? if so, what ideas do you have for a boys room?