I actually wrote a fanfic of G-5 to help deal with G-4 ending.  I asked a lot of "what if?" questions to myself, and tried to put together something close to what Hasbro might create, themselves, taking into account many of the rumors and leaks that we've heard about G-5.

In this video, I talk about what I think I did right and what I think could've been better in my fic.

Here's the link to it:

https://www.fanfiction.net/s/12852499/1/Brand-New-Day