Ultimate Hybrid in DC and marvel

Hey guys so I'm still writing for my Batman fic right now but I'm brainstorming for this fic. I had some questions for you all and some things I wanted to explain.

1st off I saw a question in a early chapter as to why mahoraga's adaptation didn't kick in. Yes there is a reason why it didn't happen.

2nd What are some idea that you all have for stories and characters you want to see I already have some picked out but I would love to have more input from you all.

3rd There was someone in a previous chapter comments who said meta humans and mutants are the same thing. This is not correct allow me to explain. Meta human powers come from Nth metal toxicity in a person's bloodstream that changes the individual's DNA results in the metagene and its various heightened abilities and powers. A

mutant is a human with a genetic trait called the X-gene that gives them superhuman powers. These powers usually appear at puberty. Mutants can also have physical changes like blue skin, wings, or tails. Mutants are considered the next stage in human evolution, and are the evolutionary descendants of Homo sapiens. 

4th is What questions do you have for me? I'll try to answer them without any spoilers for the story. The answers will be the comments.

5th what do powerstones actually do I never found out but they seem to be very important to most authors?

Anyway thanks for reading and let me know if there's something you want to see in the story.

P.S I was thinking about the idea that I could at some point write other fanfics in this multiverse although I don't know what to call or label them. Particularly I'm thinking of one wheee instead of starting out super strong it's more of a base human to strong.