How to "upgrade" DMVPN

Hey, Reddit!

For my final year of school project i chose to write about DMVPN, especially in connecting smaller branch networks.

My question is: This technology is kind of old. Can you suggest me any ways of making it more viable and/or more complex ( like integrating something ) ?

Thanks!

P.s: I am sorry if this post isnt for here or doesnt meet the guidelines. I will delete it ASAP if thats the case.